TY  - JOUR
AU  - O.S. Kozlovski
TI  - Getting rid of the negative Schwarzian derivative condition
JO  - Annals of mathematics
PY  - 2000
VL  - 152
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.2307/2661353/
DO  - 10.2307/2661353
ID  - 10_2307_2661353
ER  -