TY - JOUR AU - Wright, E. M. TI - The number of irreducible tournaments JO - Glasgow mathematical journal PY - 1970 SP - 97 EP - 101 VL - 11 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500000914/ DO - 10.1017/S0017089500000914 ID - 10_1017_S0017089500000914 ER -