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 "Lowan, Arnold Noah",The Operator approach to problems of stability and convergence of solutions of difference equations and the convergence of various iteration procedures,,"Scripta Mathematica, Yeshiva University",1957,The Scripta mathematica studies,,,,https://cir.nii.ac.jp/crid/1130282271193344256