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http://www.amiworld.it/programmi/turbocalc/turbocalc_eng.html

https://www.wikidata.org/wiki/Q105850917

https://blog.alb42.de/2019/06/10/turbocalc-functions/

https://commodore.software/downloads/category/13-spreadsheets

http://istilladoremy64.byethost24.com/doku.php?id=reviews:turbocalc</FormatNote>
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