%0 Journal Article %T GMJ volume 60 issue 1 Cover and Front matter %J Glasgow mathematical journal %D 2018 %P f1-f2 %V 60 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089517000295/ %R 10.1017/S0017089517000295 %F 10_1017_S0017089517000295