# Q134416981

> German geologist (1939-)

**Wikidata**: [Q134416981](https://www.wikidata.org/wiki/Q134416981)  
**Source**: https://4ort.xyz/entity/q134416981


## References

1. Czech National Authority Database
2. [Source](https://geomag.us/~geomagus/info/Smaus/Doc/Physik-Haak.pdf)
3. Virtual International Authority File