Markus Feilner
- Mapper since:
- August 18, 2008
- Last map edit:
- July 24, 2021
Markus Feilner is an open source journalist, Author of several books and IT consultant since the mid 1990ies.
OpenStreetMap
Markus Feilner is an open source journalist, Author of several books and IT consultant since the mid 1990ies.