TY - JOUR AU - Chiang-Hsieh, Hung-Jen AU - Yang, Yifan TI - Determination of Hauptmoduls and Construction of Abelian Extensions of Quadratic Number Fields JO - Canadian mathematical bulletin PY - 2007 SP - 334 EP - 346 VL - 50 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2007-032-1/ DO - 10.4153/CMB-2007-032-1 ID - 10_4153_CMB_2007_032_1 ER -