# Gerhard de Haan

> German educationist

**Wikidata**: [Q1512831](https://www.wikidata.org/wiki/Q1512831)  
**Source**: https://4ort.xyz/entity/gerhard-de-haan


## References

1. Integrated Authority File
2. International Standard Name Identifier
3. Virtual International Authority File
4. MAK
5. National Library of Israel Names and Subjects Authority File