ФРОЛОВА, Ольга Борисовна. Academician M. N. Bogolyubov — teacher and friend. Vestnik of Saint Petersburg University. Asian and African Studies, [S. l.], n. 2, p. 139–140, 2012. Disponível em: https://aasjournal.spbu.ru/article/view/2412. Acesso em: 19 may. 2024.