The Weyl algebra and its field of fractions.
@article{1697,
title = {The Weyl algebra and its field of fractions},
journal = {CUBO, A Mathematical Journal},
volume = {5},
year = {2003},
language = {en},
url = {http://dml.mathdoc.fr/item/1697}
}
Cohn, Paul M. The Weyl algebra and its field of fractions. CUBO, A Mathematical Journal, Tome 5 (2003) . http://gdmltest.u-ga.fr/item/1697/