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Presentation “OSM meets MediaWiki” on the occasion of the “deegree day 2009 & OpenStreetMap in the Rhineland” conference at the caesar research center, Bonn
Präsentation „OSM meets MediaWiki“ anlässlich der Tagung „deegree day 2009 & OpenStreetMap im Rheinland“ im Forschungszentrum caesar, Bonn