ASSANOVA, A.T. A life dedicated to science. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 97, n. 1, p. 132–133, 2020. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/443. Acesso em: 2 jul. 2025.