# Hans-Jürgen Gerhard
**Wikidata**: [Q95218590](https://www.wikidata.org/wiki/Q95218590)  
**Source**: https://4ort.xyz/entity/hans-j-rgen-gerhard


## References

1. Catalog of the German National Library
2. BnF authorities
3. National Library of Israel Names and Subjects Authority File
4. Virtual International Authority File