TY - JOUR AU - Z. I. Borevich TI - Groups of principal units of $p$-extensions of a local field JO - Doklady Akademii Nauk PY - 1967 SP - 253 EP - 255 VL - 173 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_173_2_a2/ LA - ru ID - DAN_1967_173_2_a2 ER -