# Hans Joachim Pfeiffer

> engineer (1944-)

**Wikidata**: [Q134723538](https://www.wikidata.org/wiki/Q134723538)  
**Source**: https://4ort.xyz/entity/hans-joachim-pfeiffer


## References

1. Catalog of the German National Library
2. NUKAT
3. Electronic Union Catalogue of Latvian Libraries of National Significance
4. Virtual International Authority File
5. CONOR.SI