A CAUCHY-GOURSAT PROBLEM FOR A SECOND KIND DEGENERATED EQUATION OF HYPERBOLIC TYPE. Scientific journal of the Fergana State University, [S. l.], n. 5, p. 1, 2023. Disponível em: https://journal.fdu.uz/index.php/sjfsu/article/view/1384. Acesso em: 10 jan. 2026.