Covering theorems for finite nonabelian simple groups. III. - Solutions of the equation α x 2 + β t 2 + γ t - 2 = a in a finite field J. L. Brenner; L. Carlitz — 1976 Rendiconti del Seminario Matematico della Università di Padova
Covering theorems for finite non-abelian simple groups, I J. L. Brenner; M. Randall; J. Riddell — 1974 Colloquium Mathematicae