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* [http://www.rwapadventures.com/ql_wiki/index.php?title=Richard%20Lang Sinclair QL Computer Wiki - Richard Lang]
* [http://www.chesscomputeruk.com/html/chess_computers_-_the_uk_story.html Chess Computers - The UK Story] from [http://www.chesscomputeruk.com/index.html Chess Computer UK] by [[Mike Watters]]
* [https://de.wikipedia.org/wiki/Richard_Lang_(Programmierer) Richard Lang (Programmierer) – Wikipedia.de] (German)
* [http://www.schach-computer.info/wiki/index.php/Lang%2C_Richard Lang, Richard] from [http://www.schach-computer.info/wiki/index.php/Hauptseite Schachcomputer.info - wiki] (German)
* [http://www.rebel.nl/authors.htm Meet the Authors] by [[Ed Schroder|Ed Schröder]]
