# Jacobus Boelen
**Wikidata**: [Q55983184](https://www.wikidata.org/wiki/Q55983184)  
**Source**: https://4ort.xyz/entity/jacobus-boelen


## References

1. Digital Library for Dutch Literature
2. Catalog of the German National Library
3. [Source](https://n2t.net/ark:/33862/collect/625998)
4. Biografisch Portaal
5. CERL Thesaurus
6. Open Library
7. Faceted Application of Subject Terminology
8. Artnet