TY - JOUR TI - GMJ volume 19 issue 1 Cover and Front matter JO - Glasgow mathematical journal PY - 1978 SP - f1 EP - f2 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003293/ DO - 10.1017/S0017089500003293 ID - 10_1017_S0017089500003293 ER -