@article{MZ_1929__29_168079,
     author = {J.G. van der Corput},
     title = {Neue zahlentheoretische {Absch;tzungen}},
     journal = {Mathematische Zeitschrift},
     pages = {397--426},
     publisher = {mathdoc},
     volume = {29},
     year = {1929},
     zbl = {54.0204.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1929__29_168079/}
}