Lutsak, S., and O. Voronina. “On Some Properties of Quasivarieties Generated by Specific Finite Modular Lattices”. Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, computer science, mechanics series 140, no. 3 (September 30, 2022): 6–14. Accessed November 21, 2024. https://bulmathmc.enu.kz/index.php/main/article/view/106.