# Johan van Halm
**Wikidata**: [Q109832596](https://www.wikidata.org/wiki/Q109832596)  
**Source**: https://4ort.xyz/entity/johan-van-halm


## References

1. Virtual International Authority File
2. NUKAT
3. SHARE Catalogue
4. CiNii Research
5. Czech National Authority Database
6. MAK
7. National Library of Israel Names and Subjects Authority File