TY - JOUR TI - GMJ volume 34 issue 3 Cover and Front matter JO - Glasgow mathematical journal PY - 1992 SP - f1 EP - f8 VL - 34 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008806/ DO - 10.1017/S0017089500008806 ID - 10_1017_S0017089500008806 ER -