TY  - JOUR
AU  - V. A. Krasnov
TI  - Two-sheeted coverings of real algebraic surfaces
JO  - Matematičeskie zametki
PY  - 1994
SP  - 137
EP  - 140
VL  - 56
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1994_56_6_a14/
LA  - ru
ID  - MZM_1994_56_6_a14
ER  -