@article{MOMA_1960__64_177104,
     author = {P. Erd\"os},
     title = {\"Uber die kleinste quadratfreie {Zahl} einer arithmetischen {Reihe.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {314--320},
     publisher = {mathdoc},
     volume = {64},
     year = {1960},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1960__64_177104/}
}