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On 29 November 1989, there were UFO radar/visual sightings at Eupen, Belgium. This was one of a number of reports in Belgium from October 1989 to late 1990, often involving descriptions of a large triangle.
This incident is Case 40 in Isaac Koi's "Top 100" article, since it was referred to in 59 of the books covered by that article.
This incident came second in an online poll conducted in March/April 2006 by Paul Kimball of “the UFO case with the ‘best evidence’ ever”.
This incident featured in a document (“the Rockefeller Briefing Document”) endorsed by Dr Mark Rodeghier (President of CUFOS), Richard Hall (Chairman of FUFOR) and Walter Andrus (President of MUFON) as containing “the best available evidence for the existence of UFOs”.
This incident has also featured in a list of cases produced by British ufologist Nick Pope for the Fortean Times in 2007 as part of a survey of various researchers of the ten cases from 1947 onwards that interested them the most.
This incident has also featured in a list of cases produced by British ufologist Gary Heseltine for the Fortean Times in 2007 as part of a survey of various researchers of the ten cases from 1947 onwards that interested them the most.