@article{GDZPPN002338580,
title = {Two theorems on elementary contractions.},
journal = {Mathematische Annalen},
volume = {295},
year = {1993},
pages = {191-198},
zbl = {0789.14011},
url = {http://dml.mathdoc.fr/item/GDZPPN002338580}
}
Andreatta, M.; Ballico, E. Two theorems on elementary contractions.. Mathematische Annalen, Tome 295 (1993) pp. 191-198. http://gdmltest.u-ga.fr/item/GDZPPN002338580/