Sadybekov, M.A. 2023. “In Memory of the Talented Mathematician, Our Comrade and Friend Krasnov Yakov Alexandrovich (1951–2023)”. Bulletin of the Karaganda University. Mathematics Series 110 (2):179-81. http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/597.