1. Burnside W., “On an unsettled question in the theory of discontinuous groups,” Quart. J. Pure Appl. Math., 33, No. 2, 230–238 (1902).
2. Neumann B. H., “Groups whose elements have bounded orders,” J. London Math. Soc., 12, 195–198 (1937).
3. Zhurtov A. Kh. and Mazurov V. D., “Local finiteness of some groups with given element orders,” Vladikavkaz. Mat. Zh., 11, No. 4, 11–15 (2009).
4. Mazurov V. D., “Groups of exponent 24,” Algebra and Logic, 49, No. 6, 515–525 (2010).
5. Shunkov V. P., “Periodic groups with an almost regular involution,” Algebra and Logic, 11, No. 4, 260–272 (1972).