TY - CPAPER AU - O. Talagrand BT - Seminar on Data Assimilation, 2-6 September 1996 CY - Shinfield Park, Reading DA - 1996 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 1996 SP - 593 EP - 594 T2 - Seminar on Data Assimilation, 2-6 September 1996 TI - Basic facts about chaotic motions ER -