# Cyprian von Popma
**Wikidata**: [Q55835538](https://www.wikidata.org/wiki/Q55835538)  
**Source**: https://4ort.xyz/entity/cyprian-von-popma


## References

1. BnF authorities
2. LIBRIS. 2018
3. Catalog of the German National Library
4. datos.bne.es
5. Digital Library for Dutch Literature
6. VcBA (identifier)
7. NUKAT
8. National Library of Portugal
9. IdRef