TY - JOUR AU - V. A. Abrashkin TI - Explicit formulae for the Hilbert symbol of a~formal group over the Witt vectors JO - Izvestiya. Mathematics PY - 1997 SP - 463 EP - 515 VL - 61 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1997_61_3_a0/ LA - en ID - IM2_1997_61_3_a0 ER -