| 1995, 1998, 2004, 2013 | International Blown Glass Symposium in Lviv. Ukraine |
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| 1997 | International Glass Symposium in Novy Bor. Czech | |
| 1998 | Glass art exhibition "Notes" at the museum Mentzendorff's house in Riga. Latvia | |
| 1998 | "Glasobjekte'98" in Losheim. Germany | |
| 1998 | Second Russian Triennial of Glass Art in Moscow. Russia | |
| 1999 | International Exposition, Installations Châteaux De La Petite Pierre. France | |
| 2000 | Art 2000 Luxembourg.Luxembourg | |
| 2000 | “THE 90-ies” at the Museum of Decorative Applied Art Riga . Latvia | |
| 2000 | "Euro- fire in the Land of Liège" in Liège. Belgium | |
| 2000 - 2002 | Nordic Glass 2000. Denmark, Finland, Estonia, Latvia, Lituania, Norway | |
| 2000 | Glass in Context. Symposium in Frauenau. Germany | |
| 2000 | Sculptures, Stained glass in Praz sur Arly. Haute Savoie France | |
| 2000, 2001, 2002 | Festival international des Arts du verre in Palau Del Vidre. France | |
| 2001 | Contemporary Glass in Alizay. France | |
| 2001 | « Quinzaine Dézarts » at the Lycée Professionnel Régional Sarrebourg. France |
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| 2001 | 3eme Biennale de Sculptures Monumentales Liege. Belgium | |
| 2002 | "Galerie 2000 - Arts & Œuvres" Art Contemporain in Luxembourg. Luxembourg | |
| 2002 | Selected for publication in New Glass Rewiew 24. The Corning Museum of Glass | |
| 2003 | Contemporary Glass Exhibition in Phalsbourg. France | |
| 2003 | Art in Beaufort. Luxembourg | |
| 2003 | „Spring. Urbanisation of Province“. The Museum of Decorative Applied Art. Riga. Latvia | |
| 2004 | “Figuratif non figuratif”. Gallery “ArtTyp”. Brussels. Belgium | |
| 2004 | “Des signes et des formes dans l’habitant”. Château de Bourglinster. Luxembourg | |
| 2004 | “Glas Hat Viele Gesichter” Schloß Holte – Stukenbrock. Germany | |
| 2004 | “Interaction”. Museum of Decorative Applied Art. Riga. Latvia | |
| 2004 | Exposition à l'ancien l'abbaye de Val Saint Lambert. Seraing. Belgium | |
| 2004, 2005 | International glass exhibition "Glasrijk Tubbergen". Tubbergen. Niederland | |
| 2004, 2006 | International glass exhibition "Glasplastik und Garten". Munster. Germany | |
| 2005 | Madame Golino “Galerie le Prado”. Liège. Belgium | |
| 2005, 2009 | Saiv’Art. Blegny. Belgium | |
| 2006 | Vorsicht Glas Kunsttage in Sulzbach. Sulzbach. Germany | |
| 2006, 2007, 2009, 2013, 2015, 2017 | International Glass Festival Luxembourg. Asselborn. Luxembourg | |
| 2007, 2008 | Glass connections. Kopstal. Luxembourg | |
| 2008, 2010 | Glasroute. Lier. Belgique | |
| 2008 | "Hortus Insolitus" International Sculpture Garden. Stourbridge. England | |
| 2008 | Glasbeurs Leerdam. Leerdam. Niederland | |
| 2009 | 10e anniversaire HËLLEF DOHEEM. Luxembourg | |
| 2009 | Journées de la Perle et du Verre. Sars-Poteries. France | |
| 2010 | Haapsalu Hot Glass Symposium. Haapsalu. Estonia | |
| 2010 | International Festival of Glass. Sofia. Bulgaria | |
| 2010 | GLASS CONNECTIONS 2010. Tétange. Luxembourg | |
| 2010, 2011, 2017 | Annual Art Glass Festival. Karlovy Vary. Czech Republic | |
| 2010, 2012 | International Glass Art Exhibition. Zwiesel. Germany | |
| 2010 | Rencontre Internationale de la Sculpture. Hettange – Grande. France | |
| 2011, 2014 | GLASS PROMENADE. Belgique | |
| 2013 | International Contemporary Glass Exhibition. Marinha Grande. Portugal | |
| 2014 | Sculpture verre dessin Gravure Poésie. Schalbach. France | |
| 2014, 2016, 2017, 2018 | KONSCHTOUR.Vianden.Luxembourg | LINKS |
| 2014, 2016 | GLASS JAZZ.Panevéžys,Lithuania | LINKS |
| 2015 | European Glass Festival. Wroclaw, Poland | LINKS |
| 2016 | 500 Jahre Postweg.Asselborn.Luxembourg | |
| 2017 | VERRE EN FORME.CAPE Ettelbruck.Luxembourg | |
| 2017 | International Glass Symposium. Nikolsk. Russia | LINKS |
| 2018 | MAGIE DU VERRE. Charly's Gare Hostert, Luxembourg | |
| 2018 | International Verre Show Médiacité Liège, Belgium | |
| 2018 | DE MAINS DE MAÎTRES LUXEMBOURG | LINKS |