# Germán Sierra

> Ph. D. Universidad Complutense de Madrid 1981

**Wikidata**: [Q102354899](https://www.wikidata.org/wiki/Q102354899)  
**Source**: https://4ort.xyz/entity/germ-n-sierra


## References

1. BnF authorities
2. datos.bne.es
3. Mathematics Genealogy Project
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Bibliothèque nationale de France
6. National Library of Israel Names and Subjects Authority File