@article{MOMA_1954__57_176912,
     author = {A. Oppenheim},
     title = {Value of quadratic forms {III.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {97--101},
     publisher = {mathdoc},
     volume = {57},
     year = {1954},
     zbl = {0052.04402},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1954__57_176912/}
}