@article{MOMA_1978__85_177868,
     author = {Richard Warlimont},
     title = {\"Uber die kleinste nat\"urliche {Zahl} maximaler {Ordnung} mod m.},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {253--258},
     year = {1978},
     volume = {85},
     zbl = {0383.10029},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1978__85_177868/}
}