@article{02166328,
title = {Height one Hopf algebras in low ramification.},
journal = {The New York Journal of Mathematics [electronic only]},
volume = {10},
year = {2004},
pages = {295-306},
zbl = {1096.16017},
language = {en},
url = {http://dml.mathdoc.fr/item/02166328}
}
Koch, Alan. Height one Hopf algebras in low ramification.. The New York Journal of Mathematics [electronic only], Tome 10 (2004) pp. 295-306. http://gdmltest.u-ga.fr/item/02166328/