| Article ID: | iaor20012906 |
| Country: | Netherlands |
| Volume: | 99 |
| Issue: | 1/3 |
| Start Page Number: | 245 |
| End Page Number: | 249 |
| Publication Date: | Feb 2000 |
| Journal: | Discrete Applied Mathematics |
| Authors: | Yao Tianxing, Guo Yubao |
Thomassen proved that every strong tournament contains a vertex