# Jac. Zwarts
**Wikidata**: [Q120962525](https://www.wikidata.org/wiki/Q120962525)  
**Source**: https://4ort.xyz/entity/jac-zwarts


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Virtual International Authority File
4. [Source](https://pid.uba.uva.nl/ark:/88238/b2190)
5. National Library of Israel Names and Subjects Authority File