# Jan Frederik Oltmans
**Wikidata**: [Q1998639](https://www.wikidata.org/wiki/Q1998639)  
**Source**: https://4ort.xyz/entity/jan-frederik-oltmans


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Biografisch Portaal
4. [Source](https://www.collectiegelderland.nl/object/82f3ff87-8a72-fca4-0546-93c648a9da1f)
5. CERL Thesaurus
6. LIBRIS. 2012
7. [Source](https://www.collectiegelderland.nl/object/b93f5a63-04a0-6cf9-8f5d-998e7d4f9789)
8. CollectieGelderland