2018 Jon East
2022 Eibe Maleen Krebs
2021 Olaf Kreinsen
2015 Özhan Eren
2014 Kai Meyer-Ricks
2017 Miko Zeuschner
2016 Dietmar Klein
2013 Axel Barth
2009 A. Mutlu
2013 Gabriele Heberling
2018 Jon East
English
2022 Eibe Maleen Krebs
German
2021 Olaf Kreinsen
German, Austrian
2015 Özhan Eren
Turkish
2014 Kai Meyer-Ricks
German
2017 Miko Zeuschner
German
2016 Dietmar Klein
German
2013 Axel Barth
German
2009 A. Mutlu
German
2013 Gabriele Heberling
German