%0 Journal Article %T GMJ volume 62 issue 2 Cover and Back matter %J Glasgow mathematical journal %D 2020 %P b1-b2 %V 62 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089520000105/ %R 10.1017/S0017089520000105 %F 10_1017_S0017089520000105