England (Oxford, Newcastle and Cambridge),

France (Toulouse, Paris, CNRS Cargese, and Grenoble),

Denmark (Copenhagen, Aarhus),

Holland (Amsterdam, Wageningen),

Germany (Stuttgart, Tubingen 2X, Konstanz),

Norway (Oslo),

USA (Berkeley, Chicago, Honolulu, Palm Springs, San Jose, Seattle, Tempe, Wolfsboro, Albaquerque),

Polen (Zakopane),

Japan (Tokyo, Kyoto, Nagoya, Sendai, Osaka),

China (Beijing),

Spain(Granada, Madrid)

and Australia (Canberra, Sydney).

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