ChernikovN. S. 1988. “Infinite Locally Finite Simple Groups With a Nontrivial Kernel of a Centralizer of the Elementary Abelian 2-Subgroup ”. Ukrains’kyi Matematychnyi Zhurnal 40 (5), 668-70. https://umj.imath.kiev.ua/index.php/umj/article/view/8826.