@article{MOMA_1978__86_177899,
     author = {Richard Warlimont},
     title = {Eine {Bemerkung} \"uber quadratfreie zahlen ...1 (mod k).},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {333--336},
     publisher = {mathdoc},
     volume = {86},
     year = {1978},
     zbl = {0404.10019},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1978__86_177899/}
}