Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Gorbachuk, V. I. (Valentina Ivanovna) and Gorbachuk, M. L. (Miroslav Lʹvovich)",Boundary value problems for operator differential equations,,Kluwer Academic Publishers,1991,Mathematics and its applications,,0792303814,,https://cir.nii.ac.jp/crid/1130000798137852160