• [1] Graham Higman, Some remarks on varieties of groups, Quart. J. Math. Oxford Ser. (2) 10 (1959), 165–178. MR 0113925 (22 #4756)
• [2] Hans Zassenhaus, The Theory of Groups, Chelsea Publishing Company, New York, N. Y., 1949. Translated from the German by Saul Kravetz. MR 0030947 (11,77d)
• [3] G. Birkhoff, On the structure of abstract algebras, Proc. Cambridge Philos. Soc. 31 (1935), 433-454.
• [4] G. Higman, Identical relations in finite groups, Conv. Internaz. di Teoria dei Gruppi Finiti (Firenze, 1960) Edizioni Cremonese, Rome, 1960, pp. 93–100. MR 0122858 (23 #A190)
• [5] P. Weichsel, Doctoral dissertation, California Institute of Technology, Pasadena, California, (1960).
• [6] Oystein Ore, Structures and group theory. I, Duke Math. J. 3 (1937), no. 2, 149–174. MR 1545977, http://dx.doi.org/10.1215/S0012-7094-37-00311-9

Bibliography

[1]

G. Higman, Some remarks on varieties of groups, Quart. J. Math. Oxford Ser. 10 (1959), 165-178. MR 0113925 (22:4756)

[2]

H. Zassenhaus, The theory of groups, Chelsea, New York, 1949. MR 0030947 (11:77d)

[3]

G. Birkhoff, On the structure of abstract algebras, Proc. Cambridge Philos. Soc. 31 (1935), 433-454.

[4]

G. Higman, Identical relations in finite groups, Convegno Internazionale di Teoria dei gruppi finiti e applicazioni, Rome, 1960. MR 0122858 (23:A190)

[5]

P. Weichsel, Doctoral dissertation, California Institute of Technology, Pasadena, California, (1960).

[6]

O. Ore, Structures and group theory. I, Duke Math. J. 3 (1937), 149-174. MR 1545977