# Ernst Blumenstein
**Wikidata**: [Q58360162](https://www.wikidata.org/wiki/Q58360162)  
**Source**: https://4ort.xyz/entity/ernst-blumenstein


## References

1. Historical Dictionary of Switzerland
2. Integrated Authority File
3. Catalog of the German National Library
4. [Source](https://www.deutsche-biographie.de/sfz4809.html)
5. Open Library
6. Deutsche Biographie
7. NUKAT
8. Catalogue of the Unione Romana Biblioteche Scientifiche
9. Virtual International Authority File
10. IdRef
11. Faceted Application of Subject Terminology
12. National Library of Israel Names and Subjects Authority File