# Johannes Franz Hartmann

> German astronomer (1865–1936)

**Wikidata**: [Q61206](https://www.wikidata.org/wiki/Q61206)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Johannes_Franz_Hartmann)  
**Source**: https://4ort.xyz/entity/johannes-franz-hartmann


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Mathematics Genealogy Project
4. International Standard Name Identifier
5. Virtual International Authority File
6. [Source](https://kalliope-verbund.info/DE-611-BF-61606)
7. SNAC
8. Brockhaus Enzyklopädie
9. Freebase Data Dumps. 2013
10. CONOR.SI
11. National Library of Israel Names and Subjects Authority File