References
- Character Theory of Finite Groups Isaaces, I.M.
- Canada J. Math. v.20 Fixed point and characters Isaaces, I.M.
- Projective Representations of Finite Groups Karpilovsky, G.
- Homology MacLane, S.
- Representations of Finite Groups Nagao, H.;Tsushima, Y.
- Group Theory I Suzuki, M.
- J. Algebra v.14 Normal p- complements and irreducible characters Thompson, G.