Yeshkeyev, A.R., I.O. Tungushbayeva, and A.K. Koshekova. “The Cosemanticness of Kaiser Hulls of Fixed Classes of Models”. Bulletin of the Karaganda University. Mathematics Series 113, no. 1 (March 29, 2024): 208–217. Accessed July 24, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/696.