TY  - JOUR
AU  - V. M. Tsvetkov
TI  - Examples of extensions with Demushkin's group
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1980
SP  - 146
EP  - 149
VL  - 103
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1980_103_a20/
LA  - ru
ID  - ZNSL_1980_103_a20
ER  -