(help) „X Appeal: 'The X-Files' Builds a Cult Following by Following the Occult”. Entertainment Weekly. 18. ožujka 1993.. Arhivirano iz originala na datum…
Society, Inc 36 (3): 161-7. PMID 19860138. Heckerling PS (May 1987). „Occult carbon monoxide poisoning: a cause of winter headache”. The American Journal…