# Richard Harder

> German botanist (1888-1973)

**Wikidata**: [Q1542625](https://www.wikidata.org/wiki/Q1542625)  
**Source**: https://4ort.xyz/entity/richard-harder-q1542625


## References

1. Integrated Authority File
2. Czech National Authority Database
3. general catalog of BnF
4. Virtual International Authority File
5. International Plant Names Index
6. [Source](https://kalliope-verbund.info/DE-611-BF-61411)
7. BnF authorities
8. author citation in botany and mycology
9. Harvard Index of Botanists
10. Autoritats UB
11. NUKAT
12. MAK