# Hartwig Claußen
**Wikidata**: [Q112962154](https://www.wikidata.org/wiki/Q112962154)  
**Source**: https://4ort.xyz/entity/hartwig-clau-en


## References

1. Integrated Authority File
2. Virtual International Authority File
3. [Source](https://www.hpk.uni-hamburg.de/resolve/id/cph_person_00002729)
4. FactGrid