TY  - JOUR
AU  - O. V. Demchenko
TI  - Formal groups over $p$-adic rings of integers with small ramification and distinguished isogenies
JO  - Algebra i analiz
PY  - 2002
SP  - 55
EP  - 85
VL  - 14
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2002_14_3_a2/
LA  - ru
ID  - AA_2002_14_3_a2
ER  -