Markus Feilner
- Maper od:
- 18. august 2008.
- Last map edit:
- 24. juli 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.