Allen Tough (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Allen Tough" in English language version.

refsWebsite

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5,878^th place

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6,805^th place

1^st place

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daviddarling.info

International Academy of Astronautics, SETI Permanent Study Group. "Announcing: the Billingham Cutting Edge Lecture". Archived from the original on 2008-05-12. Retrieved 1 May 2008.

Baker, Oliver (28 July 2001). "ET-mail". New Scientist (2301). Retrieved 1 May 2008.
Feedback (18 December 2004). "ET on the Internet". New Scientist: 76. Retrieved 2008-04-13.

Canada. "globeandmail.com: TOUGH". V1.theglobeandmail.com. Retrieved 30 April 2012.

International Academy of Astronautics, SETI Permanent Study Group. "Announcing: the Billingham Cutting Edge Lecture". Archived from the original on 2008-05-12. Retrieved 1 May 2008.