@article{CMH_1982__57_139900,
     author = {Manuel Ojanguren},
     title = {A splitting theorem for quadratic forms.},
     journal = {Commentarii mathematici Helvetici},
     pages = {145--157},
     publisher = {mathdoc},
     volume = {57},
     year = {1982},
     zbl = {0487.13005},
     url = {http://geodesic.mathdoc.fr/item/CMH_1982__57_139900/}
}