Addis Ababa (Ethiopia), June 2012
Kuala Lumpur (Malaysia), April 2012
Beijing (Great walls, China), April 2011
Marrakech (Morocco), May 2010
Marrakech (Morocco), May 2010
Serra Negra (Brazil), August 2009
Tipaza (Algeria), May 2009
Prague, June 2008
Rio de Janeiro (Brazil), June 2008
Serra Negra (Brazil), August 2007
Wuhan (China), August 2007
University of Notre-Dame (USA), June 2006
Rutgers University (USA), April 2005
Martina Franca (Italy), July 2002
Université de Rouen, June 2002