TY - JOUR TI - GMJ volume 55 issue 1 Cover and Front matter JO - Glasgow mathematical journal PY - 2013 SP - f1 EP - f2 VL - 55 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000572/ DO - 10.1017/S0017089512000572 ID - 10_1017_S0017089512000572 ER -