TY - JOUR AU - Mania, M. AU - Tevzadze, R. TI - A unified characterization of -optimal and minimal entropy martingale measures by semimartingale backward equations. JO - Georgian Mathematical Journal PY - 2003 SP - 289 EP - 310 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/GMJ_2003__10_2_50819/ LA - en ID - GMJ_2003__10_2_50819 ER -