1. Simple groups of order 2a3b5c7dp;Alex;Trans. Amer. Math. Soc.,1972
2. On simple groups of order 2a3b7cp;Alex;J. Algebra,1973
3. Index two simple groups;Alex;J. Algebra,1974
4. Up and down fusion;Alperin;J. Algebra,1974
5. Finite groups with quasi-dihedral and wreathed Sylow 2-subgroups;Alperin;Trans. Amer. Math. Soc.,1970