Julien's work has been published on websites and in magazines, books and numerous prestigious photographic catalogues of international exhibitions all over the world. Some examples:

Catalogues
- Aqüeducte - Biennal Internacional de Fotografia, Spain (2006, 2008, 2010)
- Trierenberg Super Circuit, Austria (2006, 2007, 2011, 2012, 2014)
- Decisive Moment, The Emirates Photography Competition, Abu Dhabi (2014)
- Cultural Reflexions, The Emirates Photography Competition, Abu Dhabi (2012)
- Indonesia Salon of Art Photography, Indonesia (2012)
- Holland International Image Circuit, Netherlands (2012)
- Finland International Digital Circuit, Finland (2010)
- International Slide & Digital Circuit, Photolovers, India (2008)
- International Salon of Art Photography "Pokrova Photovernissage", Ukraine (2011)
- Fotosport, Biennal Internacional de Fotografia de l'Esport, Spain (2012, 2014)

Books
- Quintessence Project 2000-2020, Fotoforum KG, Austria (2020)
- Die Besten Tierfotos der Welt (The World's Best Animal Images), Fotoforum KG, Austria (2012)

Magazines
- Photography News, United Kingdom
- E-News, Belgische Federatie van Fotografen - Fédération Belges des Photographes
- Bulletin Image Sans Frontière - Image without Frontier, France
- Journal Photographic Society of America, USA
- Hippo Revue (equestrian magazine), Belgium
- Klankbord (music magazine), Belgium
- Tirolerin, Austria