# Halvor Rosendahl

> Norwegian geologist, esperantist (1890-1963)

**Wikidata**: [Q12348701](https://www.wikidata.org/wiki/Q12348701)  
**Source**: https://4ort.xyz/entity/halvor-rosendahl


## References

1. [Source](http://urn.nb.no/URN:NBN:no-nb_digibok_2008042204101?page=708)
2. [Source](https://www.nb.no/items/URN:NBN:no-nb_digibok_2007021901060?page=437)
3. [Digital Archives](https://www.digitalarkivet.no/view/279/pk00000002785249)
4. [lokalhistoriewiki.no](https://lokalhistoriewiki.no/wiki/Halvor_Olai_Rosendahl)