1.
Velesnitskii VF, Semenchuk VN. On Finite Groups with Permutable Generalized Subnormal Subgroups. Ukr. Mat. Zhurn. [Internet]. 2013Nov.25 [cited 2023Feb.5];65(11):1555–1559. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2534