Foto: "<a href="https://ccnull.de/foto/rheinenergiestadion-luftbild/1038995" target="_blank">Rheinenergiestadion (Luftbild)</a>" von <a href="https://ccnull.de/fotograf/marco-verch" target="_blank">Marco Verch</a> via <a href="https://ccnull.de" target="_blank">ccnull.de</a> - <a href="https://www.flickr.com/photos/30478819@N08/39011109000/" target="_blank">Bildquelle</a>, <a href="https://creativecommons.org/licenses/by-nc/2.0/de/" target="_blank">CC-BY-NC 2.0</a>