{"title":"Book review of: Werner, Oliver (2022): Wissenschaft ‚in jedem Gewand‘? Von der „Reichsarbeitsgemeinschaft für Raumforschung“ zur „Akademie für Raumforschung und Landesplanung“ 1935 bis 1955","authors":"H. Kegler","doi":"10.14512/rur.1707","DOIUrl":"https://doi.org/10.14512/rur.1707","url":null,"abstract":"Buchrezension.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46956995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The steering of the residential development on the regional level is one of the major tasks of regional planning. Nevertheless, no nationwide information is yet available on the implementation of the planning instruments in regional plans. Moreover, for potential steering types, only one approach on the level of the German federal states exists. To reduce this information deficit, a plan content analysis is used to determine which positive planning instruments were implemented in the state development plans and regional plans valid in 2017. The data basis for negative planning instruments is the spatial development plan monitor of the Federal Office for Building and Regional Planning (BBSR). With these data, a non-linear principal component analysis and a cluster analysis is carried out to identify specific steering types. As a result, six regional planning steering types of pre-use planning, quantitative control, settlement axes, positive planning location control, intra-municipal framework with extensive mono-functional open space protection and extensive location control through multifunctional open space protection can be identified. The different steering types are often spatially clustered, so that a significant influence of state planning requirements can be assumed.
{"title":"Raumordnerische Steuerungstypen der wohnbaulichen Siedlungsentwicklung in Deutschland. Eine bundesweite Analyse der eingesetzten Planungsinstrumente in allen deutschen Planungsregionen","authors":"David Pehlke","doi":"10.14512/rur.111","DOIUrl":"https://doi.org/10.14512/rur.111","url":null,"abstract":"The steering of the residential development on the regional level is one of the major tasks of regional planning. Nevertheless, no nationwide information is yet available on the implementation of the planning instruments in regional plans. Moreover, for potential steering types, only one approach on the level of the German federal states exists. To reduce this information deficit, a plan content analysis is used to determine which positive planning instruments were implemented in the state development plans and regional plans valid in 2017. The data basis for negative planning instruments is the spatial development plan monitor of the Federal Office for Building and Regional Planning (BBSR). With these data, a non-linear principal component analysis and a cluster analysis is carried out to identify specific steering types. As a result, six regional planning steering types of pre-use planning, quantitative control, settlement axes, positive planning location control, intra-municipal framework with extensive mono-functional open space protection and extensive location control through multifunctional open space protection can be identified. The different steering types are often spatially clustered, so that a significant influence of state planning requirements can be assumed.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44181093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As a contribution to the debate on deregulation of spatial planning and lean regional plans, this paper presents the first long-term study for Germany analysing the regulatory intensity of all regional plans legally valid in 2017 on the topics of settlement and open space development over time. As a final result, the assumption of a general deregulation and streamlining of regional plans cannot be confirmed. In contrast, changes in the legal basis, such as the priority of inner over outer urban development, have led to a continuous increase in the regulatory intensity over time, particularly in the case of positive growth management policies with an active role of regional planning. At the same time, there is evidence of streamlining tendencies in some states, which can partly be interpreted as deregulation tendencies. To date, however, they are merely an expression of state-specific ways of shaping regional planning and not a sign of an accelerated deregulation competition.
{"title":"Die Entwicklung der Regulierungsintensität der deutschen Regionalpläne von 1985 bis 2017. Ein empirischer Beitrag zur Diskussion um den Bedeutungsverlust der Raumordnung","authors":"S. Eichhorn, C. Diller, David Pehlke","doi":"10.14512/rur.941","DOIUrl":"https://doi.org/10.14512/rur.941","url":null,"abstract":"As a contribution to the debate on deregulation of spatial planning and lean regional plans, this paper presents the first long-term study for Germany analysing the regulatory intensity of all regional plans legally valid in 2017 on the topics of settlement and open space development over time. As a final result, the assumption of a general deregulation and streamlining of regional plans cannot be confirmed. In contrast, changes in the legal basis, such as the priority of inner over outer urban development, have led to a continuous increase in the regulatory intensity over time, particularly in the case of positive growth management policies with an active role of regional planning. At the same time, there is evidence of streamlining tendencies in some states, which can partly be interpreted as deregulation tendencies. To date, however, they are merely an expression of state-specific ways of shaping regional planning and not a sign of an accelerated deregulation competition.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42495465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Eichhorn, Christian Gerten, M. Weiß, Angelika Münter
Changes in the accessibility of a city – for example, due to the connection to the long-distance rail network for the first time – not only affect transport demand but can also have catalytic effects on urban development. Using a mixed-methods approach, the study presented in this paper investigates whether long-distance rail stations in Germany between 2004/2005 and 2016/2017 generate such impulses for urban development in their catchment areas via their accessibility level and dynamics. Results show no direct impulses of accessibility on urban development in many cases, suggesting that other reasons such as population and housing pressure or the existence of inner-city (unused) development sites are the more significant factors for urban development dynamics. In addition, accessibility changes are often subject to business considerations that are generally detached from local political and planning goals and interests.
{"title":"Städtebauliche Entwicklungsdynamiken an Fernverkehrsbahnhöfen in Deutschland","authors":"S. Eichhorn, Christian Gerten, M. Weiß, Angelika Münter","doi":"10.14512/rur.229","DOIUrl":"https://doi.org/10.14512/rur.229","url":null,"abstract":"Changes in the accessibility of a city – for example, due to the connection to the long-distance rail network for the first time – not only affect transport demand but can also have catalytic effects on urban development. Using a mixed-methods approach, the study presented in this paper investigates whether long-distance rail stations in Germany between 2004/2005 and 2016/2017 generate such impulses for urban development in their catchment areas via their accessibility level and dynamics. Results show no direct impulses of accessibility on urban development in many cases, suggesting that other reasons such as population and housing pressure or the existence of inner-city (unused) development sites are the more significant factors for urban development dynamics. In addition, accessibility changes are often subject to business considerations that are generally detached from local political and planning goals and interests.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47339224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper discusses which methods can be used to operationalize mobility in German planning practice. In particular, the index methodology, which is rarely used in planning practice, is suitable for the systematic operationalization of complex phenomena such as mobility. After a short theoretical introduction, the concept of mobility will be operationalized step by step for indexing. For this purpose, in addition to a theoretical construction model for a mobility index, a science-based list of indicators necessary for its calculation is created. Subsequently, this spatial mobility index is calculated on the basis of accessibility and user survey data from the Berlin district of Pankow. As a result, the index clearly shows on maps where people have more or less mobility options. Thus, the mobility index provides a novel method for planning to identify high or low mobility in the study areas.
{"title":"Entwicklung und Anwendung eines raumbezogenen Index für Mobilität","authors":"A. Rammert","doi":"10.14512/rur.207","DOIUrl":"https://doi.org/10.14512/rur.207","url":null,"abstract":"This paper discusses which methods can be used to operationalize mobility in German planning practice. In particular, the index methodology, which is rarely used in planning practice, is suitable for the systematic operationalization of complex phenomena such as mobility. After a short theoretical introduction, the concept of mobility will be operationalized step by step for indexing. For this purpose, in addition to a theoretical construction model for a mobility index, a science-based list of indicators necessary for its calculation is created. Subsequently, this spatial mobility index is calculated on the basis of accessibility and user survey data from the Berlin district of Pankow. As a result, the index clearly shows on maps where people have more or less mobility options. Thus, the mobility index provides a novel method for planning to identify high or low mobility in the study areas.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46154497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Throughout the last two decades, large housing estates in eastern Germany have become the scene of an increased concentration of low-income households. At the same time, considerable shifts in the structure of home ownership have been documented in these areas. National and international investors have acquired large housing stocks here and become a fundamental part of the local housing markets. This paper discusses the connection between both developments. Based on a case study in two large housing estates in Halle (Saale) and Schwerin, it is argued that the relative impoverishment of large housing estates can be traced back to two developments on the supply side: On the one hand, municipal housing companies are increasingly made responsible for the provision of homes for households that cannot provide for themselves on the market. Due to the uneven spatial distribution of municipal housing, this leads to an increased concentration of poor households in the large housing estates. On the other hand, letting policies of financial investors are characterised by tight yield requirements. In view of a rather restrained demand for the housing they manage, they therefore increasingly rent their flats to population groups that are avoided by other landlords. Together, these developments operate like a ‘segregation machine’, which continuously shifts low-income population groups to the large housing estates.
{"title":"„Das ging ja nur hier…“ – Wohneigentümerstrukturen und Segregation in ostdeutschen Großwohnsiedlungen","authors":"Matthias Bernt","doi":"10.14512/rur.472","DOIUrl":"https://doi.org/10.14512/rur.472","url":null,"abstract":"Throughout the last two decades, large housing estates in eastern Germany have become the scene of an increased concentration of low-income households. At the same time, considerable shifts in the structure of home ownership have been documented in these areas. National and international investors have acquired large housing stocks here and become a fundamental part of the local housing markets. This paper discusses the connection between both developments. Based on a case study in two large housing estates in Halle (Saale) and Schwerin, it is argued that the relative impoverishment of large housing estates can be traced back to two developments on the supply side: On the one hand, municipal housing companies are increasingly made responsible for the provision of homes for households that cannot provide for themselves on the market. Due to the uneven spatial distribution of municipal housing, this leads to an increased concentration of poor households in the large housing estates. On the other hand, letting policies of financial investors are characterised by tight yield requirements. In view of a rather restrained demand for the housing they manage, they therefore increasingly rent their flats to population groups that are avoided by other landlords. Together, these developments operate like a ‘segregation machine’, which continuously shifts low-income population groups to the large housing estates.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49323753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper is based on intensive study of the contents of the journal “Raumforschung und Raumordnung” (RuR) – from its first publication in 1936 to its (temporary) discontinuation in 1944. It was the forum for the new scientific and political thoughts and reflections that were formed in this field during the Nazi era and was supported by the institutions in charge of its publication: the “Reich Association for Spatial Research” (RAG) and the “Reich Agency for Spatial Planning” (RfR). The aim of the paper is to uncover which social developments and accompanying intellectual groundwork from the time before 1933 the authors were able to build upon, both positively and negatively, and which expositions paid tribute to the (malevolent) spirit of the times and the goals of the Nazi regime. The contradiction between professional competence and intellectual subservience to the Nazi regime, or even the perversion of professionality, is revealed in the career behaviour of academics and practitioners, almost all of whom were born around 1900. Their activities after 1945 and their future careers are mentioned but are not the subject of this paper.
本文基于对《Raumforschung und Raummordnung》（RuR）期刊内容的深入研究——从1936年首次出版到1944年（暂时）停刊。它是纳粹时代在这一领域形成的新的科学和政治思想和反思的论坛，并得到了负责出版的机构的支持：“帝国空间研究协会”（RAG）和“帝国空间规划署”（RfR）。这篇论文的目的是揭示1933年之前的社会发展和随之而来的知识基础，无论是积极的还是消极的，以及哪些论述向时代精神和纳粹政权的目标致敬。从学者和从业者的职业行为中可以看出，专业能力与对纳粹政权的智力顺从之间的矛盾，甚至是对专业性的扭曲，他们几乎都出生在1900年左右。他们在1945年后的活动和未来的职业生涯都被提及，但不是本文的主题。
{"title":"Die Anfänge der Zeitschrift Raumforschung und Raumordnung (RuR) – 1936 bis 1944. Zeit- und Ungeist im Umbruch","authors":"W. Strubelt","doi":"10.14512/rur.215","DOIUrl":"https://doi.org/10.14512/rur.215","url":null,"abstract":"This paper is based on intensive study of the contents of the journal “Raumforschung und Raumordnung” (RuR) – from its first publication in 1936 to its (temporary) discontinuation in 1944. It was the forum for the new scientific and political thoughts and reflections that were formed in this field during the Nazi era and was supported by the institutions in charge of its publication: the “Reich Association for Spatial Research” (RAG) and the “Reich Agency for Spatial Planning” (RfR). The aim of the paper is to uncover which social developments and accompanying intellectual groundwork from the time before 1933 the authors were able to build upon, both positively and negatively, and which expositions paid tribute to the (malevolent) spirit of the times and the goals of the Nazi regime. The contradiction between professional competence and intellectual subservience to the Nazi regime, or even the perversion of professionality, is revealed in the career behaviour of academics and practitioners, almost all of whom were born around 1900. Their activities after 1945 and their future careers are mentioned but are not the subject of this paper.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42592649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Today, most countries in the global north have developed and implemented urban growth management (UGM) programs and policies aimed at mitigating the impacts and negative externalities of urban sprawl and achieving a more compact urban form. However, there is substantial disagreement about their effectiveness and effects of these programs. In this paper, we systematically review the extensive literature on growth management to better understand a) the current state of the practice of UGM, and b) the determinants of successful UGM implementation. Compared to previously available literature syntheses, which focus heavily on North American research, we also take into account studies based in Europe and some Asian and Oceanic countries. From this literature, we identify several key factors to successful growth management implementation: a multi-level governance approach, intersectoral policy coordination, a regionally adapted mix of policy instruments, balancing development needs with preservation goals, and the ability to develop positive narratives around growth management.
{"title":"Managing Urban Growth – an Overview of the Literature","authors":"S. Siedentop, Stephan Schmidt, Alistair Dunlop","doi":"10.14512/rur.1653","DOIUrl":"https://doi.org/10.14512/rur.1653","url":null,"abstract":"Today, most countries in the global north have developed and implemented urban growth management (UGM) programs and policies aimed at mitigating the impacts and negative externalities of urban sprawl and achieving a more compact urban form. However, there is substantial disagreement about their effectiveness and effects of these programs. In this paper, we systematically review the extensive literature on growth management to better understand a) the current state of the practice of UGM, and b) the determinants of successful UGM implementation. Compared to previously available literature syntheses, which focus heavily on North American research, we also take into account studies based in Europe and some Asian and Oceanic countries. From this literature, we identify several key factors to successful growth management implementation: a multi-level governance approach, intersectoral policy coordination, a regionally adapted mix of policy instruments, balancing development needs with preservation goals, and the ability to develop positive narratives around growth management.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46295261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Zimmermann, J. Gollata, J. Knieling, Fabian Vogt
City-regional discourses around organisational forms offer little evidence to analyse and guide cooperative processes in a context-specific way. Design criteria can contribute to overcoming this deficit. This paper operationalises a proposed set of design criteria by drawing on the discourses on collaborative governance and land management. Subsequently, these design criteria are used to analyse an ongoing process for the development of a housing development concept in the Leipzig city region and to reflect on the criteria. This contributes to the question of how collaborative governance of land-use development in city regions should be designed. Important points of reference for the design of cooperations are the conscious selection of the actors to be involved and the development of mutual trust between them, joint definition of rules of the game for cooperation, determination of the nature of the emerging institution, orientation of the joint work towards the future and the development of a common understanding of the situation to be improved.
{"title":"Kooperative Siedlungsflächenentwicklung in Stadtregionen: Das Fallbeispiel Leipzig","authors":"T. Zimmermann, J. Gollata, J. Knieling, Fabian Vogt","doi":"10.14512/rur.226","DOIUrl":"https://doi.org/10.14512/rur.226","url":null,"abstract":"City-regional discourses around organisational forms offer little evidence to analyse and guide cooperative processes in a context-specific way. Design criteria can contribute to overcoming this deficit. This paper operationalises a proposed set of design criteria by drawing on the discourses on collaborative governance and land management. Subsequently, these design criteria are used to analyse an ongoing process for the development of a housing development concept in the Leipzig city region and to reflect on the criteria. This contributes to the question of how collaborative governance of land-use development in city regions should be designed. Important points of reference for the design of cooperations are the conscious selection of the actors to be involved and the development of mutual trust between them, joint definition of rules of the game for cooperation, determination of the nature of the emerging institution, orientation of the joint work towards the future and the development of a common understanding of the situation to be improved.","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47625670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eine regionale, integrierte und kooperative Siedlungspolitik ist von zentraler Bedeutung für die zukunftsfähige Entwicklung von Städten und Regionen. Angemessene Entwicklungsziele für Gewerbe, Wohnen und Daseinsvorsorge können nicht mehr nur allein auf der kommunalen Ebene vorgegeben werden, insbesondere hinsichtlich der Anforderungen an eine ressourcenschonende und kosteneffiziente Siedlungsentwicklung. Im Spannungsfeld zwischen Freiraumschutz und Wachstumsdruck sind regionale Strategien zu entwickeln und im Zusammenspiel mit zahlreichen Akteuren innerhalb des politischen Mehrebenensystems umzusetzen. Formelle und informelle Politiken des regionalen Wachstumsmanagements erfahren daher – nicht nur in Deutschland – einen erheblichen Bedeutungsgewinn. Innovative Lösungen werden im Sinne einer Regional Governance bereits vielfach modellhaft erprobt. Dabei lässt sich eine große Vielfalt an strategisch-instrumentellen Ausrichtungen und
{"title":"Regionales Wachstumsmanagement: strategische und instrumentelle Ausgestaltung in interkommunalen Handlungsarrangements","authors":"S. Siedentop, B. Warner","doi":"10.14512/rur.1687","DOIUrl":"https://doi.org/10.14512/rur.1687","url":null,"abstract":"Eine regionale, integrierte und kooperative Siedlungspolitik ist von zentraler Bedeutung für die zukunftsfähige Entwicklung von Städten und Regionen. Angemessene Entwicklungsziele für Gewerbe, Wohnen und Daseinsvorsorge können nicht mehr nur allein auf der kommunalen Ebene vorgegeben werden, insbesondere hinsichtlich der Anforderungen an eine ressourcenschonende und kosteneffiziente Siedlungsentwicklung. Im Spannungsfeld zwischen Freiraumschutz und Wachstumsdruck sind regionale Strategien zu entwickeln und im Zusammenspiel mit zahlreichen Akteuren innerhalb des politischen Mehrebenensystems umzusetzen. Formelle und informelle Politiken des regionalen Wachstumsmanagements erfahren daher – nicht nur in Deutschland – einen erheblichen Bedeutungsgewinn. Innovative Lösungen werden im Sinne einer Regional Governance bereits vielfach modellhaft erprobt. Dabei lässt sich eine große Vielfalt an strategisch-instrumentellen Ausrichtungen und","PeriodicalId":45221,"journal":{"name":"Raumforschung und Raumordnung-Spatial Research and Planning","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46341565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：