%0 Journal Article
%A Keiichi Oshikawa
%T On formal groups over complete discrete valuation rings with application to a theorem of Lutz.
%J Journal für die reine und angewandte Mathematik
%D 1982
%P 79-90
%V 334
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JRAM_1982__334_152450/
%F JRAM_1982__334_152450