1. A set of generators and relations for the group PSL(2, q), q odd;Beetham;J. London Math. Soc.,1971
2. Generational relations for the abstract group simply isomorphic with the group LF(2, pn);Bussey,1905
3. The abstract groups Rm = Sm = (RjSj)pj = 1, Sm = T2 = (SjT)2pj = 1, and Sm = T2 = (S−jTSjT)pj = 1;Coxeter,1936
4. Generators and Relations for Discrete Groups;Coxeter,1964
5. Schur multipliers of finite simple groups of Lie type;Griess;Trans. Amer. Math. Soc.,1973