TY - JOUR AU - Bercov, R. TI - On Groups with all Composition Factors Isomorphic JO - Canadian mathematical bulletin PY - 1966 SP - 413 EP - 415 VL - 9 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-048-3/ DO - 10.4153/CMB-1966-048-3 ID - 10_4153_CMB_1966_048_3 ER -