2004 Oxford, England
2005 Boston, MA, USA
2006 Nijmegen, The Netherlands
2007 Boston, MA, USA
2008 Athens, Greece
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2009 Albuquerque, NM, USA
2010 Seoul, Korea
2011 Washington, DC, USA
2012 St. Gallen, Switzerland
2013 Cambridge, MA, USA
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2014 Delft, Netherlands
2015 Cambridge, MA, USA
2016 Delft, Netherlands
2017 Cambridge, MA, USA
2018 Reykjavík, Iceland
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