1. R. Brauer,On the connection between the ordinary and modular characters of groups of finite order. Ann. Math.,42 (1941), 926–935
2. W.H. Burnside,On some properties of groups of odd order. Proc. London Math. Soc., Vol33 (1901), 162–185
3. R.W. Carter,Simple Groups of Lie type. John Wiley & Sons Ltd, 1972
4. J.H. Conway et al.,Atlas of finite groups. Clarendon Press, Oxford, 1985
5. G. Frobenius,Überauflösbare Gruppen IV. Berl. Berichte (1901), 1216–1230