I shall be away for a short while, during which time I may not be able to respond to emails regularly. For matters concerning the EMS-CDC (including its book donation scheme and the twinning programme) please contact Leif Abrahamsson <leifab@math.uu.se>. For matters concerning CIMPA, please contact Alain Damlamian <damla@univ-paris12.fr>. Please copy messages to me so I have a record. Tsou Sheung Tsun.