# Johannes Altheer
**Wikidata**: [Q94921420](https://www.wikidata.org/wiki/Q94921420)  
**Source**: https://4ort.xyz/entity/johannes-altheer


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Virtual International Authority File
4. BnF authorities
5. [Source](https://www.collectiegelderland.nl/object/3b970233-3c58-e687-a52d-d2d75f1c147f)
6. National Library of Israel Names and Subjects Authority File
7. CollectieGelderland