1. R.Zh. Aleev, Higman’s central unit theory, units of integral group rings of finite cyclic groups and Fibonacci numbers. Int. J. Algebra Comput. 4(3), 309–358 (1994)
2. R.Zh. Aleev, The units of character fields and the central units of integer group rings of finite groups [translation of Mat. Tr. 3(1, 3–37) (2000); MR1778756 (2001g:16062)], Siberian Adv. Math. 11(1), 1–33
3. R.Zh. Aleev, G.A. Panina, The units of cyclic groups of orders 7 and 9, Izv. Vyssh. Uchebn. Zaved. Mat. no. 11, 81–84 (1999)
4. R.Zh. Aleev, V.V. Sokolov, On central unit groups of integral group rings of alternating groups. Proc. Steklov Inst. Math. 267(suppl. 1), S1–S9 (2009)
5. R.Zh. Aleev, A.V. Kargapolov, V.V. Sokolov, The ranks of central unit groups of integral group rings of alternating groups. Fundam. Prikl. Mat. 14(7), 15–21 (2008)