# Isaac Ibn Khalfun
**Wikidata**: [Q7028939](https://www.wikidata.org/wiki/Q7028939)  
**Source**: https://4ort.xyz/entity/isaac-ibn-khalfun


## References

1. BnF authorities
2. Czech National Authority Database
3. Faceted Application of Subject Terminology
4. datos.bne.es
5. Virtual International Authority File