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 "Odhnoff, Jan",Operators generated by differential problems with eigenvalue parameter in equation and boundary condition,,Håkan ohlssons,1959,Meddelanden från Lunds Universitets matematiska seminarium = Communications du séminaire matehématique de l'Université de Lund,,,,https://cir.nii.ac.jp/crid/1130000795655541376