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
"Koshelev, A. I. (Aleksandr Ivanovich) and Chelkak, Sergej I.",Regularity of solutions of quasilinear elliptic systems,,Teubner,1985,Teubner-Texte zur Mathematik,,,,https://cir.nii.ac.jp/crid/1130000798357129728