Stefan Regel (4 October 2010). "Frank Deville - Teil 6" (in German). Saarbrücker Zeitung. Archived from the original on 24 September 2015. Retrieved 9 September 2012.
Stefan Regel (4 October 2010). "Frank Deville - Teil 6" (in German). Saarbrücker Zeitung. Archived from the original on 24 September 2015. Retrieved 9 September 2012.