# Bernhard Hagemann

> German author

**Wikidata**: [Q825155](https://www.wikidata.org/wiki/Q825155)  
**Source**: https://4ort.xyz/entity/bernhard-hagemann


## References

1. Integrated Authority File
2. International Standard Name Identifier
3. Virtual International Authority File
4. CONOR.SI
5. ADAGP directory