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 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM_2000_152_3_a2/ ID - AM_2000_152_3_a2 ER -