# Karl Friedrich Speyer
**Wikidata**: [Q55909165](https://www.wikidata.org/wiki/Q55909165)  
**Source**: https://4ort.xyz/entity/karl-friedrich-speyer


## References

1. CERL Thesaurus
2. VcBA (identifier)
3. Alvin
4. [Source](http://thesaurus.cerl.org/record/cnp00691189)
5. Virtual International Authority File