# Johann Rudolf Osterwald
**Wikidata**: [Q107589322](https://www.wikidata.org/wiki/Q107589322)  
**Source**: https://4ort.xyz/entity/johann-rudolf-osterwald


## References

1. Catalog of the German National Library
2. NUKAT
3. CERL Thesaurus
4. [Source](http://thesaurus.cerl.org/record/cnp00361118)
5. Virtual International Authority File