Gorbachuk, V.I. and Gorbachuk, M.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: 17 February 2026).