6"Chariots of the Gods?" Wikipedia, the Free Encyclopedia. Web. 24 Apr. 2011. <http://en.wikipedia.org/wiki/Chariots_of_the_Gods>.
From this article: "A 2004 article in Skeptic magazine states that von Däniken plagiarized many of the book's concepts from The Morning of the Magicians, that this book in turn was heavily influenced by the Cthulhu Mythos, and that the core of the ancient astronaut theory originates in H. P. Lovecraft's short stories 'The Call of Cthulhu' and 'At the Mountains of Madness'."