%0 Journal Article
%A Gh. 

 Ivan
%T Special 

 morphism of groupoids
%J Novi Sad Journal of Mathematics
%D 2002
%P 23-36
%V 32
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_2002_32_2a_3/
%F NSJOM_2002_32_2a_3