– Roland Peter, Wacker Thun photographer
– Felix Walker, LC Brühl Handball photographer
– Martin Deuring, Pfadi Winterthur photographer
– Andrej Sidorowicz, Pfadi Winterthur photographer

Without images, I could forget my hobby. Although I’m also a hobby photographer, I would not have the time to do both myself. Therefore, I would like to send a sincere thank you to my sources.