Chernikov, N. S. “A Note on <em class="a-Plus-plus">FC</Em&gt;-Groups”. Ukrains’kyi Matematychnyi Zhurnal 55, no. 2 (February 25, 2003): 288-289. Accessed May 30, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3907.