TY - JOUR TI - GMJ volume 16 issue 2 Cover and Front matter JO - Glasgow mathematical journal PY - 1975 SP - f1 EP - f6 VL - 16 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002536/ DO - 10.1017/S0017089500002536 ID - 10_1017_S0017089500002536 ER -