# Otto Gras
**Wikidata**: [Q60623663](https://www.wikidata.org/wiki/Q60623663)  
**Source**: https://4ort.xyz/entity/otto-gras


## References

1. Q67853662
2. Biographical Dictionary of the History of the Czech Lands
3. [Registries of Jewish religious communities in the Czech regions](https://vademecum.nacr.cz/vademecum/permalink?xid=5062639d-d552-4af4-8699-8a54d1a60107&scan=d94b61c4a5bb56e61c4ae4b921e001f6)
4. Catalog of the German National Library
5. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_G/Gras_Otto_1864_1907.xml)
6. [Source](https://ndk.cz/uuid/uuid:628a4108-ba18-4663-aa91-0cec32f2f5cc)
7. [Source](https://www.biographien.ac.at/oebl/oebl_G/Gras_Otto_1864_1907.xml)