# Klaus Berchtold
**Wikidata**: [Q99936097](https://www.wikidata.org/wiki/Q99936097)  
**Source**: https://4ort.xyz/entity/klaus-berchtold


## References

1. Catalog of the German National Library
2. [Source](http://catalogo.share-cat.unina.it/sharecat/searchNames?n_cluster_id=566900)
3. Virtual International Authority File
4. National Library of Israel Names and Subjects Authority File