%0 Journal Article
%A POWELL, GEOFFREY
%T ON THE DOUBLE TRANSFER AND THE f-INVARIANT
%J Glasgow mathematical journal
%D 2012
%P 547-577
%V 54
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089512000158/
%R 10.1017/S0017089512000158
%F 10_1017_S0017089512000158