Mapę wykonało Wydawnictwo Kartograficzne JEL-KART www.jelkart.pl and this page was made with QGIS and Qgis2threejs plugin, and uses the following library:

• three.js http://threejs.org/ (LICENSE)
• dat-gui https://code.google.com/p/dat-gui/ (LICENSE)
• Proj4js http://trac.osgeo.org/proj4js/ (LICENSE)