TY  - JOUR
AU  - N. V. Ivanov
TI  - Permutation representations of braid groups of surfaces
JO  - Sbornik. Mathematics
PY  - 1992
SP  - 309
EP  - 318
VL  - 71
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1992_71_2_a2/
LA  - en
ID  - SM_1992_71_2_a2
ER  -