%0 Journal Article
%A D. Bourn
%A E. M. Vitale
%T Extensions of symmetric cat-groups
%J Homology, homotopy, and applications
%D 2002
%P 103-162
%V 4
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4310/HHA.2002.v4.n1.a8/
%R 10.4310/HHA.2002.v4.n1.a8
%G en
%F HHA_2002_4_1_a7