1. Finite Geometries;Dembowski,1968
2. Linear Groups, with an Exposition of the Galois Field Theory;Dickson,1958
3. A generalization of Andre's systems;Fousler;Math. Z.,1964
4. Projective planes;Hall;Trans. Amer. Math. Soc.,1943
5. Techniques for enumerating Veblen-Wedderburn systems;Kleineeld;J. Assoc. Comput. Mach.,1960