1. A. K. Shlyopkin, “Conjugate biprimitive finite groups with finite unsolvable subgroups,” in Proc. III Int. Conf. Alg., Krasnoyarsk (1993), p. 369.
2. Unsolved Problems in Group Theory, The Kourovka Notebook, 18th edn., Institute of Mathematics SO RAN, Novosibirsk (2014);
http://www.math.nsc.ru/∼alglog/18kt.pdf
.
3. J. L. Alperin, R. Brauer, and D. Gorenstein, “Finite groups with quasi-dihedral and wreathed Sylow 2-subgroups,” Trans. Am. Math. Soc., 151, No. 1, 1-261 (1970).
4. J. L. Alperin, R. Brauer, and D. Gorenstein, “Finite simple groups of 2-rank two,” Scripta Math., 29, Nos. 3/4, 191-214 (1973).
5. D. V. Lytkina and A. K. Shlyopkin, “Periodic groups saturated with linear groups of degree 2 and unitary groups of degree 3,” to appear.