# Karl-Ontjes Groeneveld

> German physicist

**Wikidata**: [Q62559899](https://www.wikidata.org/wiki/Q62559899)  
**Source**: https://4ort.xyz/entity/karl-ontjes-groeneveld


## References

1. Virtual International Authority File
2. [Source](https://www.ae-info.org/ae/User/Groeneveld_Karl-Ontjes)
3. Integrated Authority File