TY - JOUR AU - Masao Toyoizumi TI - Remarks on the upper bound for L(1,χ) JO - Acta Arithmetica PY - 1990 SP - 137 EP - 140 VL - 55 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-55-2-137-140/ DO - 10.4064/aa-55-2-137-140 LA - en ID - 10_4064_aa_55_2_137_140 ER -