Semko, N.N., L.V. Skaskiv, and O.A. Yarovaya. “Leibniz Algebras, Having a Dense Family of Ideals”. Carpathian Mathematical Publications 12, no. 2 (December 30, 2020): 451–460. Accessed November 21, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/4156.