%0 Journal Article %T GMJ volume 35 issue 3 Cover and Back matter %J Glasgow mathematical journal %D 1993 %P b1-b2 %V 35 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708950000985X/ %R 10.1017/S001708950000985X %F 10_1017_S001708950000985X