Kurdachenko LA, Semko MM, Atlihan S. About the structure of finite groups, whose all non-Abelian subgroups are subnormal . Dopov. Nac. akad. nauk Ukr. [Internet]. 2014 Apr. 28 [cited 2026 Jun. 20];(4):15-8. Available from: https://nasu-periodicals.org.ua/index.php/dp/article/view/15772