@article{GDZPPN002206234,
title = {Classification of smooth congruences of low degree.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {394},
year = {1989},
pages = {199-219},
zbl = {0649.14027},
url = {http://dml.mathdoc.fr/item/GDZPPN002206234}
}
Arrondo, Enrique; Sols, Igancio. Classification of smooth congruences of low degree.. Journal für die reine und angewandte Mathematik, Tome 394 (1989) pp. 199-219. http://gdmltest.u-ga.fr/item/GDZPPN002206234/