TY - JOUR TI - GMJ volume 2 issue 4 Cover and Front matter JO - Glasgow mathematical journal PY - 1956 SP - f1 EP - f2 VL - 2 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.1017/S2040618500033244/ DO - 10.1017/S2040618500033244 ID - 10_1017_S2040618500033244 ER -