1.
Zhuravlev VF, Zabrodskiy PN, Fomin NP. Conditions of solvability and representation of the solutions of equations with operator matrices. Ukr. Mat. Zhurn. [Internet]. 2019Apr.25 [cited 2020Dec.2];71(4):471-85. Available from: http://umj.imath.kiev.ua/index.php/umj/article/view/1452