Category:Derk-Jan Hartman at Wikimania 2017
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Media in category "Derk-Jan Hartman at Wikimania 2017"
The following 2 files are in this category, out of 2 total.
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Wikimania Hackathon 2017 11.jpg 6,016 × 4,016; 14.85 MB
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Wikimedia Conference 2017 by René Zieger – 242.jpg 4,000 × 2,670; 1.34 MB