Assanova A, Uteshova R. Dulat Syzdykbekovich Dzhumabaev. Life and scientific activity (dedicated to the 70th birthday anniversary). M [Internet]. 2024 June 28 [cited 2026 Oct. 27];2(114):221-43. Available from: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/753