Thanks to @Viggo who provided the scans and PDF of this Programmer’s Update article from December 1989 on the Jensen & Partners Story - Topspeed Compilers.
JPI article 1989.pdf (2.0 MB)
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For those interested in the history of Clarion, here are some articles (I also posted the links in CW-Talk2 today):
http://pisoft.ru/verstak/insider/cw_history.htm
http://www.liquisearch.com/clarion_programming_language/history
http://everything.explained.today/Clarion_(programming_language)/
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