# lanthanide

> trivalent metallic rare earth elements

**Wikidata**: [Q19569](https://www.wikidata.org/wiki/Q19569)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Lanthanide)  
**Source**: https://4ort.xyz/entity/lanthanide


## References

1. Library of Congress
2. RAMEAU
3. Nuovo soggettario
4. Freebase Data Dumps. 2013
5. BabelNet
6. UMLS 2023
7. National Library of Israel
8. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)