# Guðmundur E. Sigvaldason

> Icelandic geologist (1932-2004)

**Wikidata**: [Q16426073](https://www.wikidata.org/wiki/Q16426073)  
**Source**: https://4ort.xyz/entity/gu-mundur-e-sigvaldason


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. IdRef