TY - JOUR AU - Walker, R. G. TI - Non-cancellative power-free groups JO - Glasgow mathematical journal PY - 1966 SP - 207 EP - 212 VL - 7 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.1017/S2040618500035449/ DO - 10.1017/S2040618500035449 ID - 10_1017_S2040618500035449 ER -