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 "Rasmusen, Hans Qvade and Hesselberg, O. K.",An appropriate method for integration of the motion of periodic comets,,I Kommission hos Munksgaard,1954,Matematisk-fysiske Meddelelser,,,,https://cir.nii.ac.jp/crid/1130000794482349440