TY  - JOUR
AU  - V. A. Krasnov
TI  - On~cohomology classes defined by the real points of a real algebraic $\operatorname{GM}$-surface
JO  - Izvestiya. Mathematics 
PY  - 1994
SP  - 385
EP  - 395
VL  - 43
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1994_43_2_a10/
LA  - en
ID  - IM2_1994_43_2_a10
ER  -