ЕСҚАБЫЛОВА, Ж.; ОСПАНОВ, Қ. COERCIVE SOLVABILITY CONDITIONS OF THE THREE-ORDER DEGENERATE DIFFERENTIAL EQUATIONS. Bulletin of Abai KazNPU. Series of Physical and mathematical sciences, Алматы, Казахстан, v. 69, n. 1, p. 62–67, 2021. DOI: 10.51889/2020-1.1728-7901.10 . Disponível em: https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/153. Acesso em: 22 nov. 2024.