TY - JOUR TI - GMJ volume 51 issue A Cover and Front matter JO - Glasgow mathematical journal PY - 2009 SP - f1 EP - f7 VL - 51 IS - A UR - http://geodesic.mathdoc.fr/articles/10.1017/S001708950900490X/ DO - 10.1017/S001708950900490X ID - 10_1017_S001708950900490X ER -