TY - JOUR TI - GMJ volume 20 issue 1 Cover and Back matter JO - Glasgow mathematical journal PY - 1979 SP - b1 EP - b1 VL - 20 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003645/ DO - 10.1017/S0017089500003645 ID - 10_1017_S0017089500003645 ER -