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2017, Stuttgart, Germany (photo: Ulrich Iberer)
2017, Ludwigsburg, Germany (photo: Marvin Roller)
2017, San Antonio, USA (photo: Helen Janc Malone)
2017, Ottawa, Canada
2016, Dublin, Ireland
2016, Canberra, Australia
2016, Ludwigsburg, Germany
2015, Brussels, Belgium
2015, Brussels, Belgium
2015, Brussels, Belgium
2015, Kassel, Germany
2015, Zug, Switzerland
2015, Zug, Switzerland
2015, Cincinnatti, USA
2015, Cincinnatti, USA
2015, Cincinnatti, USA
2014, Rüschlikon, Switzerland
2014, Rüschlikon, Switzerland
2013, Rome, Italy
2013, Santiago de Chile, Chile
2012, Kiel, Germany
2010, Berlin, Germany