Wikimedia 2020

Wikimedia, Foundation. 2020. Wikidata, the free knowledge base.

https://www.wikidata.org/

@misc{Wikidata,
  author = {Wikimedia, Foundation},
  title  = {Wikidata, the free knowledge base},
  url    = {https://www.wikidata.org/},
  year   = {2020}
}