%0 Journal Article %A S. Louboutin %T On the size of $L(1,\chi)$ and S. Chowla's hypothesis implying that $L(1,\chi)>0$ for $s>0$ and for real characters $\chi$ %J Colloquium Mathematicum %D 2013 %P 79-90 %V 130 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm130-1-8/ %R 10.4064/cm130-1-8 %G en %F 10_4064_cm130_1_8