ORUMBAYEVA, N.T. 75th anniversary of Doctor of Physical and Mathematical Sciences, Professor M.I. Ramazanov. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 113, n. 1, p. 219–220, 2024. Disponível em: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/698. Acesso em: 1 apr. 2026.