1. W. Bosma, and, B. de Smit, Arithmetically equivalent fields of small degree, in preparation.
2. Algebraic Number Theory,1967
3. Some asymptotic formulas in number theory;Erdős;J. Indian Math. Soc.,1948
4. Some consequences of the classification of finite simple groups;Feit,1980
5. Subgroups inducing the same permutation representation;Guralnick;J. Algebra,1983