4th and 5th Triennial European Glass Sculpture in Liege and Luxembourg (Belgium, Luxembourg 1996, 2000)

Centre International d'Art Contemporain Liege (Belgium 1997)

Lycee Technique de Saarbourg (France 1997, 2000)

"Le Genie Verrier de l'Europe"Luxembourg (Luxembourg 1998)

Museum Mentzendorff's house in Riga (Latvia 1998)

"Glasobjekte'98" Losheim (Germany 1998)

National Museum in L'viv (Ukraine 1998, 2004, 2013)

Glass Symposium in L'viv (Ukraine 1998, 2004, 2013)

Museum of Decorative, Applied and Folk Art in Moscow (Russia 1998)

Art in Beaufort (Luxembourg 1999, 2003)

Art et Decoration Paris (France 2000)

"Cultures et Matieres" Saarbrucken, Metz, Luxemburg (Germany, France, Luxembourg 2000)

Art 2000 Luxembourg (Luxembourg 2000)

"L`Euro feu au pays de Liège" (Belgium 2000)

Glass Symposium in Frauenau (Germany 2000)

Festival international des Arts du verre in Palau Del Vidre (France 2000, 2001, 2002)

Sculptures, Stained glass in Praz sur Arly (Haute Savoie, France 2000)

Contemporary Glass in Alizay (France 2001)

« Quinzaine Dézarts » at the Lycée Professionnel Régional Sarrebourg ( France 2001)

3eme Biennale de Sculptures Monumentales Liege (Belgium 2001)

Art Innsbruck 2001 (Austria 2001)

„Galerie 2000 – Arts & Œuvres“ 28ème Salon des Antiquaires et de l’Art Contemporain. Luxembourg (Luxembourg 2002)

Kunst Forum in St.Vith (Belgium 2002)

Glass Symposium au Chateaux de Val St. Lambert (Belgium 2003)

Contemporary Glass Exhibition in Phalsbourg (France 2003)

Exposition à l'ancien l'abbaye de Val Saint Lambert (Seraing, Belgium 2003, 2004, 2005)

5., 6. Internationale Ausstellung Glasplastik und Garten (Munster, Deutschland 2004, 2006)

“Des signes et des formes dans l’habitant” (Château de Bourglinster, Luxembourg 2004)

Glasrijk Tubbergen (Tubbergen, Niederland 2004, 2005)

 “Glas Hat Viele Gesichter” (Schloß Holte – Stukenbrock, Germany 2004)

Glass Museum in L'viv. Collection exhibition (Varsawa, Poland 2004)

Madame Golino “Galerie le Prado” (Liège, Belgium 2005, 2009)

Salon de Peinture et Sculpture (Huldange, Luxembourg 2005, 2011)

Saiv’Art (Blegny, Belgium 2005)

International Glass Festival Luxembourg (Asselborn, Luxembourg 2006, 2007, 2009, 2011, 2015, 2017)

Vorsicht Glas. Kunsttage in Sulzbach (Sulzbach, Germany 2006, 2007)

Festival de la sculpture (Luxembourg 2007)

Glass connections (Kopstal, Luxembourg 2007, 2008)

Glasroute (Lier, Belgique 2008, 2010)

Kunstmaand Vaals (Vaals, Niederland 2008, 2011)

"Hortus Insolitus" International Sculpture Garden (Stourbridge, England 2008)

Glasbeurs Leerdam (Leerdam, Niederland 2008)

European Glass Context (Bornholm, Danemark 2008)

Rencontre Internationale de la Sculpture Miniature (Junglinster, Luxembourg 2009)

10e anniversaire HËLLEF DOHEEM (Luxembourg, 2009)

Journées de la Perle et du Verre (Sars-Poteries. France 2009)

Kunstzeit Zeitkunst in Koerich (Luxembourg 2009)

International Glass Art Exhibition (Zwiesel, Germany 2010)

Haapsalu Hot Glass Symposium (Haapsalu, Estonia 2010)

Annual Art Glass Festival (Karlovy Vary, Czech Republic 2010, 2011, 2017)

Rencontre Internationale de la Sculpture (Hettange – Grande, France 2010, 2013)

International Festival of Glass (Sofia, Bulgaria 2010)

GLASS CONNECTIONS 2010 (Tétange, Luxembourg 2010)

GLASS PROMENADE (Belgique 2011, 2014)

Sculpture verre dessin Gravure Poésie (Schalbach, France 2014)

KONSCHTOUR (Vieaden, Luxembourg 2014, 2016, 2017)

GLASS JAZZ (Panevéžys, Lithuania 2014, 2016)

500 Jahre Postweg (Asselborn, Luxembourg 2016)

VERRE EN FORME (CAPE Ettelbruck, Luxembourg 2017)

International Glass Symposium (Nikolsk, Russia 2017)

Photos of exhibitions.

Tennis-Cup World Seat-Open (LUXEMBOURG 1997, 1998, 1999, 2000, 2001, 2002, 2007)