TY  - JOUR
AU  - Petrović Vojislav
TI  - On unavoidable subgraphs 

 of strong tournaments
JO  - Novi Sad Journal of Mathematics
PY  - 1989
SP  - 61
EP  - 66
VL  - 19
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NSJOM_1989_19_2a_5/
ID  - NSJOM_1989_19_2a_5
ER  -