TY - JOUR AU - Qin Yue TI - Elements of order 4 of the Hilbert kernel in quadratic number fields JO - Acta Arithmetica PY - 2001 SP - 295 EP - 311 VL - 97 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa97-4-1/ DO - 10.4064/aa97-4-1 LA - en ID - 10_4064_aa97_4_1 ER -