TY  - JOUR
AU  - S. K. Lando
TI  - Ramified coverings of the two-dimensional sphere and the intersection theory in spaces 

JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2002
SP  - 463
EP  - 533
VL  - 57
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2002_57_3_a1/
LA  - en
ID  - RM_2002_57_3_a1
ER  -