@article{MOMA_1980__90_177978,
     author = {J.H.H. Chalk},
     title = {Linearly {Independent} {Zeros} of {Quadratic} {Forms} over {Number-Fields.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {13--26},
     publisher = {mathdoc},
     volume = {90},
     year = {1980},
     zbl = {0431.10012},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1980__90_177978/}
}