↑DEGAGNE, Mike. Myths and Legends of King Arthur and the Knights of the Round Table [online]. Allmusic.com [cit. 2012-08-06]. Dostupné online. (anglicky)
↑Rick Wakeman - The Myths And Legends Of King Arthur and the Knights of the Round Table [online]. chartarchive.org [cit. 2012-08-06]. Dostupné v archivu pořízeném dne 2012-08-22. (anglicky)