# Martin Kappas

> German physicist and geologist

**Wikidata**: [Q1904203](https://www.wikidata.org/wiki/Q1904203)  
**Source**: https://4ort.xyz/entity/martin-kappas


## References

1. Integrated Authority File
2. Virtual International Authority File
3. CiNii Research
4. IdRef
5. National Library of Israel Names and Subjects Authority File