@article{GDZPPN002097087,
title = {Babbage's Conjecture, Contact of Surfaces, Symmetric Determinantal Varieties and Applications.},
journal = {Inventiones mathematicae},
volume = {64},
year = {1981},
pages = {433-466},
zbl = {0472.14024},
url = {http://dml.mathdoc.fr/item/GDZPPN002097087}
}
Catanese, F. Babbage's Conjecture, Contact of Surfaces, Symmetric Determinantal Varieties and Applications.. Inventiones mathematicae, Tome 64 (1981) pp. 433-466. http://gdmltest.u-ga.fr/item/GDZPPN002097087/