# P.J. Zwart
**Wikidata**: [Q93229222](https://www.wikidata.org/wiki/Q93229222)  
**Source**: https://4ort.xyz/entity/p-j-zwart


## References

1. Integrated Authority File
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Virtual International Authority File