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Contact Select Contact: Markus Hohenwarter - Creator of GeoGebra, Project Leader Michael Borcherds - Lead Developer Judith Hohenwarter - Documentation, Translations Coordinator Zsolt Lavicza - Research, International GeoGebra Institute Yves Kreis - Developer Andreas Lindner - Workshops, User Forum Andreas Meier - GeoGebraWiki Rudolf Schürer - Webserver administrator Mathieu Blossier - 3D extension Lead Developer Florian Sonner - Developer Michael Borcherds Lead Developer Birmingham UK This e-mail address is being protected from spam bots, you need JavaScript enabled to view it Lead developer Adding new commands and modes, especially to support the spreadsheet

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