GorbachukV. I. and GorbachukM. L. (2000) “On one generalization of the Berezanskii evolution criterion for the self-adjointness of operators”, Ukrains’kyi Matematychnyi Zhurnal, 52(5), pp. 608-615. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4455 (Accessed: 27July2024).