@article{IM_1971__12_142083,
     author = {S. Lang},
     title = {On the {Zeta} {Function} of {Number} {Fields.}},
     journal = {Inventiones mathematicae},
     pages = {337--346},
     publisher = {mathdoc},
     volume = {12},
     year = {1971},
     zbl = {0217.04301},
     url = {http://geodesic.mathdoc.fr/item/IM_1971__12_142083/}
}