# Friedrich Köppen

> botanist and geographer (1833–1908)

**Wikidata**: [Q4251435](https://www.wikidata.org/wiki/Q4251435)  
**Source**: https://4ort.xyz/entity/friedrich-k-ppen


## References

1. Brockhaus and Efron Encyclopedic Dictionary
2. [Bionomia](https://bionomia.net/dataset/b5cdf794-8fa4-4a85-8b26-755d087bf531)
3. Bionomia
4. NLR Employees
5. Virtual International Authority File
6. CiNii Research
7. International Plant Names Index
8. Biographies of the Entomologists of the World
9. author citation in botany and mycology
10. Harvard Index of Botanists
11. NUKAT
12. [Bionomia](https://bionomia.net/dataset/064508e2-255e-4d82-9f13-05d73476cc03)