http://www.coasttocoastam.com/guest/jacobs-david/6033
http://www.ufoabduction.com/straighttalk.htm
https://www.findthemissing.org/
http://www.ufoabduction.com/bibliography.htm
http://www.namus.gov/
http://www.ufoabduction.com/biography.htm
http://www.ufoevidence.org/topics/DavidJacobs.htm
http://aliensandchildren.org/InterviewwithProf.htm
http://en.wikipedia.org/wiki/David_Michael_Jacobs
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Budd Hopkins
http://desertshapes.blogspot.com/2009/07/blog-post_3584.html