# Johannes H. Schroeder

> German geologist (1939-2018)

**Wikidata**: [Q1698371](https://www.wikidata.org/wiki/Q1698371)  
**Source**: https://4ort.xyz/entity/johannes-h-schroeder


## References

1. Integrated Authority File
2. general catalog of BnF
3. Virtual International Authority File
4. CiNii Research