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 "Gürlebeck, Klaus and Sprössig, Wolfgang",Quaternionic analysis and elliptic boundary value problems,,Akademie-Verlag,1989,Mathematical research = Mathematische Forschung,,3055007565,,https://cir.nii.ac.jp/crid/1130000794711749248