TY - CPAPER AU - R. Todling AU - S.E. Cohn BT - Workshop on non-linear aspects of data assimilation, 9-11 September 1996 CY - Shinfield Park, Reading DA - 1996 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1996 SP - 91 EP - 112 T2 - Workshop on non-linear aspects of data assimilation, 9-11 September 1996 TI - Some strategies for Kalman filtering and smoothing ER -