%0 Journal Article
%A Petrović Vojislav
%T On unavoidable subgraphs 

 of strong tournaments
%J Novi Sad Journal of Mathematics
%D 1989
%P 61-66
%V 19
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NSJOM_1989_19_2a_5/
%F NSJOM_1989_19_2a_5