%0 Journal Article %T GMJ volume 18 issue 2 Cover and Front matter %J Glasgow mathematical journal %D 1977 %P f1-f2 %V 18 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950000313X/ %R 10.1017/S001708950000313X %F 10_1017_S001708950000313X