@article{MZ_1935__39_168561,
     author = {P. Erd\"os},
     title = {\"Uber die {Primzahlen} gewisser arithmetischer {Reihen}},
     journal = {Mathematische Zeitschrift},
     pages = {473--491},
     publisher = {mathdoc},
     volume = {39},
     year = {1935},
     zbl = {61.0135.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1935__39_168561/}
}