Einblicke in den ESC mit Jean-Marc Richard – Varia Schweizdouzepoints.ch – Eurovision Song Contest Schweiz * Suisse * Switzerland – Gjon's Tears – Tout l'univers
Jean Marc Deschamps - Mazars - Switzerland
Jean-Marc Ulrich – Informatiker, Windows System Engineer – Swisscom | LinkedIn
Jean-Marc Wilp – Junior – Mazars in Switzerland | LinkedIn