WPCF 2017 Amsterdam, The Netherlands
WPCF 2015 Warsaw, Poland
WPCF 2014 Gyöngyös, Hungary
WPCF 2013 Acireale, Italy
WPCF 2012 Frankfurt, Germany
WPCF 2011 Tokyo, Japan
WPCF 2010 Kiev, Ukraine
WPCF 2009 Geneva, Switzerland
WPCF 2008 Cracow, Poland
WPCF 2007 Santa Rosa, USA
WPCF 2006 Sao Paulo, Brazil
WPCF 2005 Kroměříž, Czech Republic
