Lingeman, Richard R. (31 March 1974). “Erich von Daniken's Genesis”. The New York Times: p. 6. http://select.nytimes.com/gst/abstract.html?res=F20710FF3B5F107A93C3AA1788D85F408785F9. "A lot of ingredients go into that blender, including (...) apocryphal lore. He refers to "The Book of Dzyan", for example, which he helpfully adds is to be found in "The Secret Doctrine" of Mme. Blavatsky (...) "The Book of Dzyan" exists only in her astral thoughts. (...) Actually, both of these documents have a way of turning up repeatedly in books on flying saucers, which is probably where von Däniken found them."
