# Olga de Hartmann
**Wikidata**: [Q55937539](https://www.wikidata.org/wiki/Q55937539)  
**Source**: https://4ort.xyz/entity/olga-de-hartmann


## References

1. Integrated Authority File
2. BnF authorities
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. datos.bne.es
5. Library of Congress Authorities
6. IdRef
7. Faceted Application of Subject Terminology