Y.K. KHUDAYBERGANOV; J.I. SHARIPOV. ILL-POSED INITIAL–BOUNDARY VALUE PROBLEM FOR A SYSTEM OF MIXED-TYPE EQUATIONS WITH TWO DEGENERATE PLANES. IMRAS, [S. l.], v. 9, n. 5, p. 137–152, 2026. Disponível em: https://journal.imras.org/index.php/sps/article/view/2971. Acesso em: 23 oct. 2026.