Lukashova, T. D., and M. G. Drushlyak. “Infinite Locally Finite Groups Groups With the Given Properties of the Norm of Abelian Non-Cyclic Subgroups”. Matematychni Studii 62, no. 1 (September 15, 2024): 11-20. Accessed September 30, 2024. http://matstud.org.ua/ojs/index.php/matstud/article/view/533.