%0 Journal Article
%A J. M. Casas
%A A. M. Vieites
%T Some results on central extensions of crossed modules
%J Homology, homotopy, and applications
%D 2002
%P 29-42
%V 4
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4310/HHA.2002.v4.n1.a3/
%R 10.4310/HHA.2002.v4.n1.a3
%G en
%F HHA_2002_4_1_a2