File talk:Sicherheitsgrenze.JPG

Zitat von http://wiki.openstreetmap.org/wiki/Legal_FAQ#I_would_like_to_use_OpenStreetMap_maps._How_should_I_credit_you.3F

If you are using OpenStreetMap tiles (e.g. Mapnik or Osmarender/tiles@home), we request that your credit reads at least "(c) OpenStreetMap (and) contributors, CC-BY-SA".