САРТАБАНОВ, Ж. . FREQUENCY OF CHARACTERISTICS THE DIAGONAL DIFFERENTIATION OPERATOR. Bulletin of the Abai KazNPU, the series of "Physical and Mathematical Sciences", Алматы, Казахстан, v. 82, n. 2, p. 40–53, 2023. DOI: 10.51889/2959-5894.2023.82.2.005. Disponível em: https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/1640. Acesso em: 3 jul. 2024.