@article{1183502011, author = {Gentry, Frank C.}, title = {Cremona involutions determined by a pencil of surfaces}, journal = {Bull. Amer. Math. Soc.}, volume = {45}, number = {11}, year = {1939}, pages = { 614-622}, language = {en}, url = {http://dml.mathdoc.fr/item/1183502011} }
Gentry, Frank C. Cremona involutions determined by a pencil of surfaces. Bull. Amer. Math. Soc., Tome 45 (1939) no. 11, pp. 614-622. http://gdmltest.u-ga.fr/item/1183502011/