TY - JOUR AU - Rinka Azuma TI - Approximation theorem for evolution operators JO - Studia Mathematica PY - 2003 SP - 195 EP - 206 VL - 154 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm154-3-1/ DO - 10.4064/sm154-3-1 LA - en ID - 10_4064_sm154_3_1 ER -