Creative Commons License
busSpot Location Maps by Erik Schare are licensed under a
Creative Commons Attribution-ShareAlike 3.0 Unported License.

First step of map-creation based on the "Wikimedia - Location map of Germany"
Author: NordNordWest
Chosen License: CreativeCommons by-sa-3.0-en (abstract).

The original file you can find here

Second step of map-creation based on the "Wikimedia - Location map North Rhine-Westphalia, Germany"
Author: TUBS
Chosen License: CreativeCommons by-sa-3.0-en (abstract).

The original file you can find here