%0 Journal Article
%A S. A. Achache
%T A note about 

 the order of an extensive map
%J Novi Sad Journal of Mathematics
%D 2004
%P 1-3
%V 34
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_2004_34_2a_0/
%F NSJOM_2004_34_2a_0