@article{IM_1985__79_143206,
     author = {Kee Yuen Lam},
     title = {Some new results on composition of quadratic forms.},
     journal = {Inventiones mathematicae},
     pages = {467--474},
     publisher = {mathdoc},
     volume = {79},
     year = {1985},
     zbl = {0559.10014},
     url = {http://geodesic.mathdoc.fr/item/IM_1985__79_143206/}
}