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
"Molica Bisci, Giovanni and Rădulescu, Vicenţiu D. and Servadei, Raffaella",Variational methods for nonlocal fractional problems,,Cambridge University Press,2016,Encyclopedia of mathematics and its applications,,9781107111943,,https://cir.nii.ac.jp/crid/1130282272929607680