TY - JOUR AU - Stephen M. Zemyan TI - On the coefficient problem for the Schwarzian derivative JO - Annales Fennici Mathematici PY - 1992 SP - 221 EP - 240 VL - 17 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1992.1734/ DO - 10.5186/aasfm.1992.1734 LA - en ID - AFM_1992_17_2_a5 ER -