# Gerlof Kalma
**Wikidata**: [Q18093055](https://www.wikidata.org/wiki/Q18093055)  
**Source**: https://4ort.xyz/entity/gerlof-kalma


## References

1. Integrated Authority File
2. Dutch National Thesaurus for Author Names
3. [AlleFriezen. 1887](https://allefriezen.nl/zoeken/deeds/64fa9805-e3ae-87d2-deea-9ec4a9e1792a)
4. Encyclopedie van Friesland
5. Virtual International Authority File