TY  - JOUR
AU  - Keiichi Oshikawa
TI  - On formal groups over complete discrete valuation rings with application to a theorem of Lutz.
JO  - Journal für die reine und angewandte Mathematik
PY  - 1982
SP  - 79
EP  - 90
VL  - 334
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JRAM_1982__334_152450/
ID  - JRAM_1982__334_152450
ER  -