TY - CPAPER AU - G.P. Brasseur BT - Seminar on Global earth-system monitoring, 5-9 September 2005 CY - Shinfield Park, Reading DA - 2006 LA - eng PB - ECMWF PP - Shinfield Park, Reading PY - 2006 SP - 81 EP - 112 T2 - Seminar on Global earth-system monitoring, 5-9 September 2005 TI - Challenges in atmospheric chemistry modelling ER -