User:Hansmuller
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- English user page
- Dutch user page
- Former Boardmember Dutch chapter Wikimedia Nederland 2013-2014, i resigned in november 2013 to avoid conflict of interest with my new work as
- Wikipedian in special residence with eleven Dutch academic libraries 2013-2015
- Wikipedian in residence at Naturalis Biodiversity Center, Leiden, May - November 2015. Comments are welcome on w:species:User_talk:Hansmuller
- Sandbox