1. N. Bourbaki, Groupes et algèbres de Lie (Paris, Hermann, 1975; Mir, Moscow, 1978), Chs. 7–8.
2. A. S. Kondrat’ev, “Prime graph components of finite simple groups,” Math. USSR-Sb. 67(1), 235–247 (1990).
3. A. S. Kondrat’ev, “On finite groups with small simple spectrum,” Mat. Forum (Itogi Nauki. Yug Rossii) 6, 56–74 (2012).
4. V. D. Mazurov, “Groups with a given spectrum,” Izv. Ural’sk. Gos. Univ. 36, 119–138 (2005).
5. R. Steinberg, Lectures on Chevalley Groups (Yale Univ., New Haven, 1968; Mir, Moscow, 1975).