TY - JOUR AU - Keqin Feng TI - Non-congruent numbers, odd graphs and the Birch-Swinnerton-Dyer conjecture JO - Acta Arithmetica PY - 1996 SP - 71 EP - 83 VL - 75 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-75-1-71-83/ DO - 10.4064/aa-75-1-71-83 LA - en ID - 10_4064_aa_75_1_71_83 ER -