%0 Journal Article %A Masao Toyoizumi %T Remarks on the upper bound for L(1,χ) %J Acta Arithmetica %D 1990 %P 137-140 %V 55 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-55-2-137-140/ %R 10.4064/aa-55-2-137-140 %G en %F 10_4064_aa_55_2_137_140