{"title":"The 1990s: last chance to prevent doubling of world population.","authors":"J J Speidel","doi":"","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":84715,"journal":{"name":"Evening sun (Baltimore, Md.)","volume":" ","pages":"A18"},"PeriodicalIF":0.0000,"publicationDate":"1990-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Evening sun (Baltimore, Md.)","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}