@article{1183507547, author = {Motzkin, Th.}, title = {The hypersurface cross ratio}, journal = {Bull. Amer. Math. Soc.}, volume = {51}, number = {11}, year = {1945}, pages = { 976-984}, language = {en}, url = {http://dml.mathdoc.fr/item/1183507547} }
Motzkin, Th. The hypersurface cross ratio. Bull. Amer. Math. Soc., Tome 51 (1945) no. 11, pp. 976-984. http://gdmltest.u-ga.fr/item/1183507547/