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 "Kopachevskiĭ, N. D. (Nikolaĭ Dmitrievich) and Kreĭn, S. G. (Selim Grigorʹevich)",Self-adjoint problems for an ideal fluid,,Birkhäuser Verlag,2001,Operator theory : advances and applications,,3764354062,,https://cir.nii.ac.jp/crid/1130000793829322752