%0 Journal Article %T GMJ volume 10 issue 2 Cover and Front matter %J Glasgow mathematical journal %D 1969 %P f1-f2 %V 10 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000598/ %R 10.1017/S0017089500000598 %F 10_1017_S0017089500000598