# Martin H. Geyer

> German historian

**Wikidata**: [Q1903927](https://www.wikidata.org/wiki/Q1903927)  
**Source**: https://4ort.xyz/entity/martin-h-geyer


## References

1. Integrated Authority File
2. SUDOC
3. general catalog of BnF
4. Virtual International Authority File
5. Czech National Authority Database
6. National Library of Israel Names and Subjects Authority File