TY  - JOUR
AU  - M. V. Jakobson
TI  - On smooth mappings of the circle into itself
JO  - Sbornik. Mathematics
PY  - 1971
SP  - 161
EP  - 185
VL  - 14
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1971_14_2_a0/
LA  - en
ID  - SM_1971_14_2_a0
ER  -