# Arthur Ritter von Heider
**Wikidata**: [Q55851612](https://www.wikidata.org/wiki/Q55851612)  
**Source**: https://4ort.xyz/entity/arthur-ritter-von-heider


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Virtual International Authority File
4. Deutsche Biographie
5. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_H/Heider_Arthur_1849_1924.xml)
6. Library of Congress Authorities