著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Fukuyama, Masaharu",Optimal station spacing for a transit line,,"Institute of Transportation Studies, University of California at Berkley",1977,Dissertation series,,,,https://cir.nii.ac.jp/crid/1130282271149328640