@article{02096225,
title = {Tauvel's height formula in iterated differential operator rings.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {45},
year = {2004},
pages = {1-12},
zbl = {1057.16022},
language = {en},
url = {http://dml.mathdoc.fr/item/02096225}
}
Guédénon, Thomas. Tauvel's height formula in iterated differential operator rings.. Beiträge zur Algebra und Geometrie, Tome 45 (2004) pp. 1-12. http://gdmltest.u-ga.fr/item/02096225/