@article{CMH_1967__42_139340, author = {Alfred Gray and Robert B. Brown}, title = {Vector {Cross} {Products.}}, journal = {Commentarii mathematici Helvetici}, pages = {222--236}, year = {1967}, volume = {42}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMH_1967__42_139340/} }