# Free knowledge and open data for citizen science – Open Citizen Science with Wikisource, Wikidata, Wikiversity & Co.

> German citizen science keynote, 2022

**Wikidata**: [Q111284265](https://www.wikidata.org/wiki/Q111284265)  
**Source**: https://4ort.xyz/entity/free-knowledge-and-open-data-for-citizen-science-open-citizen-science-with-wikisource-wikidata-wikiversity-co-


## References

1. [Source](https://www.buergerschaffenwissen.de/citizen-science/veranstaltungen/online-format-mittagspause-mit-buerger-schaffen-wissen)