Zubei, Ekaterina V. “On the Permutability of Sylow Subgroups With Derived Subgroups of B-Subgroups”. Journal of the Belarusian State University. Mathematics and Informatics, no. 1 (April 8, 2019): 12–17. Accessed October 4, 2026. https://journals.bsu.by/index.php/mathematics/article/view/924.