User:Ralf Roletschek
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--> Submissions/Taking Quality Images with Cheap Cameras
- Commons: (main account)
- German Wikiversity
- German Wikipedia (from 2003)
- private Homepage, technical information about bicycles in german
- Instructor: Carpenter
- Photographers training at Gunter Rinnhofer
- Studies of Civil Engineering in Berlin; Dipl - Ing (FH)
- Education qualification for bicycle mechanics
- Lecturer University Anhalt
- Lecturer University of Applied Science Hof in Germany
- Wiki Consultant for Twoonix at Volkswagen AG