@article{JRAM_1980__318_152262,
     author = {M.-A. Knus and Parimala Raman},
     title = {Quadratic forms associated with projective modules over quaternion algebras.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {20--31},
     publisher = {mathdoc},
     volume = {318},
     year = {1980},
     zbl = {0426.10022},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1980__318_152262/}
}