%0 Journal Article
%A Ušan 

 Janez
%T On 

 congruences on n-groups
%J Novi Sad Journal of Mathematics
%D 1997
%P 89-100
%V 27
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_1997_27_1a_9/
%F NSJOM_1997_27_1a_9