@article{MOMA_1981__92_178039,
     author = {G. Ramharter},
     title = {\"Uber ein {Problem} von {Mordell} in der {Geometrie} der {Zahlen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {143--160},
     publisher = {mathdoc},
     volume = {92},
     year = {1981},
     zbl = {0459.10020},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1981__92_178039/}
}