DovzhenkoS. A. “On the Chernikova Theorem on Well-Factorizable Groups”. Ukrains’kyi Matematychnyi Zhurnal 51, no. 6 (June 25, 1999): 854–855. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4673.