Mathematical problems in the theory of wave propagation. Part 54, Zap. Nauchn. Sem. POMI, 533, ed. M. I. Belishev, T. A. Suslina, 2024, 199 ñ. http://mi.mathnet.ru/book2072
Mathematical problems in the theory of wave propagation. Part 53, Zap. Nauchn. Sem. POMI, 521, ed. M. I. Belishev, T. A. Suslina, 2023, 263 ñ. http://mi.mathnet.ru/book1976
Mathematical problems in the theory of wave propagation. Part 52, Zap. Nauchn. Sem. POMI, 516, ed. M. I. Belishev, T. A. Suslina, 2022, 280 ñ. http://mi.mathnet.ru/book1943