@article{MZ_1929__30_168135,
     author = {H. Sp\"ath},
     title = {\"Uber {Lambertsche} {Reihen}},
     journal = {Mathematische Zeitschrift},
     pages = {481--486},
     publisher = {mathdoc},
     volume = {30},
     year = {1929},
     url = {http://geodesic.mathdoc.fr/item/MZ_1929__30_168135/}
}