TY - JOUR AU - D. V. Osipov TI - Central extensions and the Riemann-Roch theorem on algebraic surfaces JO - Sbornik. Mathematics PY - 2022 SP - 671 EP - 693 VL - 213 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2022_213_5_a5/ LA - en ID - SM_2022_213_5_a5 ER -