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  Homepage Sven Gronemeyer - Das Schriftsystem der Maya

  https://web.archive.org/web/20141230042645/http://sven-gronemeyer.de/research/schrift.html

  Keine Beschreibung vorhanden.

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  Homepage Sven Gronemeyer - Coba, Quintana Roo, Mexico

  https://web.archive.org/web/20070927051444/http://www.sven-gronemeyer.de/research/coba.html

  Keine Beschreibung vorhanden.

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