# Jacobus Koelman
**Wikidata**: [Q2410423](https://www.wikidata.org/wiki/Q2410423)  
**Source**: https://4ort.xyz/entity/jacobus-koelman


## References

1. Virtual International Authority File
2. Biografisch Portaal
3. Early Modern Letters Online
4. Korean Authority File
5. Digital Library for Dutch Literature
6. Open Library
7. Post-Reformation Digital Library