# Bertha Siertsema

> Dutch university teacher

**Wikidata**: [Q65851958](https://www.wikidata.org/wiki/Q65851958)  
**Source**: https://4ort.xyz/entity/bertha-siertsema


## References

1. Leidse Hoogleraren
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Faceted Application of Subject Terminology
4. Virtual International Authority File
5. National Library of Israel Names and Subjects Authority File