-
Eugene, USA, 24–29 July 2011
-
Luxembourg City, Luxembourg, 19–24 July 2009
-
Awaji Island, Japan, 22–27 July 2007
-
St. John's, Newfoundland, Canada, 14–18 August 2005
-
Hong Kong, 2–7 August 1998
-
Braunschweig, Germany, 30 July–4 August 1995
-
Victoria, B.C., Canada, 19–24 July 1992
-
Toyonaka, Osaka, Japan, 20–25 August 1989
-
University of St. Andrews, Scotland, UK, 15–19 July 1985
-
Jerusalem, Israel, 30 August–4 September 1981
-
Lindau/Bodensee, Federal Republic of Germany, 23–27 September 1974
-
Sendai, Japan, 24–28 August 1970