Gutlyanskii, V.Ya., V.I. Ryazanov, E. Yakubov, and A.S. Yefimushkin. “On Boundaryvalue Problems in Domains Without (A)-Condition”. Reports of the National Academy of Sciences of Ukraine, no. 3 (April 21, 2024): 17–24. Accessed December 23, 2024. https://nasu-periodicals.org.ua/index.php/dp/article/view/2154.