%0 Journal Article %A Bercov, R. %T On Groups with all Composition Factors Isomorphic %J Canadian mathematical bulletin %D 1966 %P 413-415 %V 9 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-048-3/ %R 10.4153/CMB-1966-048-3 %F 10_4153_CMB_1966_048_3