Glass artist Martin Stefanek on 1.7-16.7.2011 with his glassworks in Desna participated in the Ekoglass festival, VI. International plein air and art glass symposium, co-organized by Czech Centres and the Polish Szklarska Poreba. An exhibition of works was held at the Polish Institute in Prague, the Czech Centre in Warsaw, etc.
http://warsaw.czechcentres.cz/cs/galerie/foto/01072011-ekoglass/