• [1] R. Baer, Classes of finite groups and their properties, Illinois J. Math. 1 (1957), 115-187. MR 0087655 (19:386d)
• [2] W. Gaschütz, Über die -Untergruppen endlicher Gruppen, Math. Z. 58 (1953), 160-170. MR 0057873 (15:285c)
• [3] -, Zur Erweiterungtheorie der endlicher Gruppen, J. Reine Angew. Math. 190 (1952), 93-107. MR 0051226 (14:445e)
• [4] M. Hall, The theory of groups, Macmillan, New York, 1959. MR 0103215 (21:1996)
• [5] P. Hall, Complemented groups, J. London Math. Soc. 12 (1937), 201-204.
• [6] M. Suzuki, Structure of a group and the structure of its lattice of subgroups, Springer, Berlin, 1956. MR 0083487 (18:715e)
• [7] D. R. Taunt, On A-groups, Proc. Cambridge Philos. Soc. 45 (1959), 24-42. MR 0027759 (10:351f)

Bibliography

[1]

R. Baer, Classes of finite groups and their properties, Illinois J. Math. 1 (1957), 115-187. MR 0087655 (19:386d)

[2]

W. Gaschütz, Über die -Untergruppen endlicher Gruppen, Math. Z. 58 (1953), 160-170. MR 0057873 (15:285c)

[3]

-, Zur Erweiterungtheorie der endlicher Gruppen, J. Reine Angew. Math. 190 (1952), 93-107. MR 0051226 (14:445e)

[4]

M. Hall, The theory of groups, Macmillan, New York, 1959. MR 0103215 (21:1996)

[5]

P. Hall, Complemented groups, J. London Math. Soc. 12 (1937), 201-204.

[6]

M. Suzuki, Structure of a group and the structure of its lattice of subgroups, Springer, Berlin, 1956. MR 0083487 (18:715e)

[7]

D. R. Taunt, On A-groups, Proc. Cambridge Philos. Soc. 45 (1959), 24-42. MR 0027759 (10:351f)