1. A note on the number of 4-circuits in a tournament;Alspach;Ann. Discrete Math.,1982
2. Vertex-symmetric tournaments of order n with the minimum number of arc orbits;Astié-Vidal,1975
3. The maximum number of strongly connected subtournaments;Beineke;Canad. Math. Bull.,1965
4. On the number of 5-cycles in a tournament;Berman,1975
5. On the characteristic roots of tournament matrices;Brauer;Bull. Amer. Math. Soc.,1968