TY - JOUR AU - Kingan, Robert J. TI - Tournaments and Ideal Class Groups JO - Canadian mathematical bulletin PY - 1995 SP - 330 EP - 333 VL - 38 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1995-048-1/ DO - 10.4153/CMB-1995-048-1 ID - 10_4153_CMB_1995_048_1 ER -