Yeshkeyev A, Yarullina A, Amanbekov S, Kassymetova M. On Robinson spectrum of the semantic Jonsson quasivariety of unars. M [Internet]. 2023 Jun. 30 [cited 2025 Dec. 8];2(110):169-78. Available from: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/576