{"title":"Research on the Development Trend of Population Aging in Shangqiu City Based on Grey GM(1, 1) Model","authors":"颖 赵","doi":"10.12677/orf.2023.132086","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":396898,"journal":{"name":"Operations Research and Fuzziology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Operations Research and Fuzziology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12677/orf.2023.132086","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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