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
"Heinonen, Juha and Kilpeläinen, Tero and Martio, O. (Olli)",Nonlinear potential theory of degenerate elliptic equations,,"Clarendon Press,Oxford University Press",1993,Oxford mathematical monographs,,0198536690,,https://cir.nii.ac.jp/crid/1130000795303090816