@article{10_4064_aa130_4_3,
     author = {Philippe Lebacque},
     title = {Generalised {Mertens} and {Brauer{\textendash}Siegel} theorems},
     journal = {Acta Arithmetica},
     pages = {333--350},
     publisher = {mathdoc},
     volume = {130},
     number = {4},
     year = {2007},
     doi = {10.4064/aa130-4-3},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa130-4-3/}
}