%0 Journal Article
%A J. Ušan
%T Orthogonal systems of n-ary operations and codes
%J Matematički vesnik
%D 1978
%P 91 
%V 30
%N 1
%U http://geodesic.mathdoc.fr/item/MV_1978_30_1_a12/
%F MV_1978_30_1_a12