# Xavier Kretz
**Wikidata**: [Q18702483](https://www.wikidata.org/wiki/Q18702483)  
**Source**: https://4ort.xyz/entity/xavier-kretz


## References

1. BnF authorities
2. Integrated Authority File
3. general catalog of BnF
4. National Library of Portugal
5. Virtual International Authority File
6. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Kretz%20Xavier)