WHITESNAKE To Release 'The Purple Tour (Live)' CD, DVD, Blu-Ray In January [online]. Blabbermouth.net, 2017-12-06 [cit. 2017-12-16]. Dostupné online. (anglicky)
whitesnake.com
The Purple Tour (Live) [online]. Whitesnake, 2017-10-19 [cit. 2017-12-16]. Dostupné online. (anglicky)