@article{1183498790,
author = {Brauer, Richard},
title = {A characterization of null systems in projective space},
journal = {Bull. Amer. Math. Soc.},
volume = {42},
number = {12},
year = {1936},
pages = { 247-254},
language = {en},
url = {http://dml.mathdoc.fr/item/1183498790}
}
Brauer, Richard. A characterization of null systems in projective space. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 247-254. http://gdmltest.u-ga.fr/item/1183498790/