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 "Rosenblum, Marvin",On the operator equation BX - XA = Q,,"Dept. of Mathematics, University of California",1955,Technical report,,,,https://cir.nii.ac.jp/crid/1130000795455194368