@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/