@article{1183501912, author = {Warnock, W. G.}, title = {Triple systems as ruled quadrics}, journal = {Bull. Amer. Math. Soc.}, volume = {45}, number = {11}, year = {1939}, pages = { 476-480}, language = {en}, url = {http://dml.mathdoc.fr/item/1183501912} }
Warnock, W. G. Triple systems as ruled quadrics. Bull. Amer. Math. Soc., Tome 45 (1939) no. 11, pp. 476-480. http://gdmltest.u-ga.fr/item/1183501912/