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 "Farkas, Miklós",Qualitative theory of differential equations,,"North-Holland,Bolyai János Matematikai Társulat",1981,Colloquia Mathematica Societatis János Bolyai,,0444861734,,https://cir.nii.ac.jp/crid/1130282271930202752