TY  - JOUR
AU  - D. V. Osipov
TI  - Central extensions and reciprocity laws on algebraic surfaces
JO  - Sbornik. Mathematics
PY  - 2005
SP  - 1503
EP  - 1527
VL  - 196
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2005_196_10_a4/
LA  - en
ID  - SM_2005_196_10_a4
ER  -