%0 Journal Article %T GMJ volume 62 issue S1 Cover and Back matter %J Glasgow mathematical journal %D 2020 %P b1-b2 %V 62 %N S1 %U http://geodesic.mathdoc.fr/articles/10.1017/S001708952000049X/ %R 10.1017/S001708952000049X %F 10_1017_S001708952000049X