@article{1183503786,
author = {Purcell, Edwin J.},
title = {Cremona involutions determined by two line congruences},
journal = {Bull. Amer. Math. Soc.},
volume = {47},
number = {11},
year = {1941},
pages = { 596-601},
language = {en},
url = {http://dml.mathdoc.fr/item/1183503786}
}
Purcell, Edwin J. Cremona involutions determined by two line congruences. Bull. Amer. Math. Soc., Tome 47 (1941) no. 11, pp. 596-601. http://gdmltest.u-ga.fr/item/1183503786/