%0 Journal Article
%A O. V. Demchenko
%T Formal groups over $p$-adic rings of integers with small ramification and distinguished isogenies
%J Algebra i analiz
%D 2002
%P 55-85
%V 14
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2002_14_3_a2/
%G ru
%F AA_2002_14_3_a2