@article{GDZPPN002195925,
title = {Higher ramification in Hensel fields.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {310},
year = {1979},
pages = {185-191},
zbl = {0445.12014},
url = {http://dml.mathdoc.fr/item/GDZPPN002195925}
}
Sankaran, N.; Avtar, Ram. Higher ramification in Hensel fields.. Journal für die reine und angewandte Mathematik, Tome 310 (1979) pp. 185-191. http://gdmltest.u-ga.fr/item/GDZPPN002195925/