KASSYMETOVA, M.T. Professor Yeshkeyev’s Life in Science and Logic: Celebrating the Scholar’s 70th Anniversary. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 122, n. 2, p. 192–193, 2026. Disponível em: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/1291. Acesso em: 7 jul. 2026.