# Sergio A. Sierra
**Wikidata**: [Q112551425](https://www.wikidata.org/wiki/Q112551425)  
**Source**: https://4ort.xyz/entity/sergio-a-sierra


## References

1. Czech National Authority Database
2. datos.bne.es
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)