著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
P. Drábek,"<em>Methods of Nonlinear Analysis: Applications to Differential Equations</em>,",Second edition,,,2013,,,,https://cir.nii.ac.jp/crid/1371977243773881217,