%0 Journal Article
%A Sandra Mantovani
%A Giuseppe Metere
%T Internal crossed modules and  Peiffer Condition
%J Theory and applications of categories
%D 2010
%P 113-135
%V 23
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TAC_2010_23_a5/
%G en
%F TAC_2010_23_a5