Markus Feilner
- Kaartmakker sûnt:
- 18 augustus 2008
- Last map edit:
- 24 july 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.