%0 Journal Article %A Philippe Lebacque %T Generalised Mertens and Brauer–Siegel theorems %J Acta Arithmetica %D 2007 %P 333-350 %V 130 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa130-4-3/ %R 10.4064/aa130-4-3 %G de %F 10_4064_aa130_4_3