Collection trips
Albania (2002, 2003, 2004, 2006)
Bosnia-Herzegovina (2006, 2007)
Bulgaria (2005, 2007, 2013)
Dominican Republic (2003)
Greece (2006, 2007, 2009, 2011, 2012, 2013)
Kenya (2001)
China (2014, 2015)
Korea (2013, 2014, 2015)
Japan (2016)
Montenegro (2008)
Serbia and Croatia (2003, 2004, 2005, 2006, 2007, 2010)
Romania (2004, 2005, 2006, 2007, 2008, 2009, 2011, 2013)