TY  - JOUR
AU  - T. Nowicki
AU  - S. van Strien
TI  - Absolutely continuous invariant measures for C2 unimodal maps satisfying the Collet-Eckmann conditions.
JO  - Inventiones mathematicae
PY  - 1988
SP  - 619
EP  - 636
VL  - 93
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1988__93_2_143611/
ID  - IM_1988__93_2_143611
ER  -