# Petrus A. Bayer
**Wikidata**: [Q112506040](https://www.wikidata.org/wiki/Q112506040)  
**Source**: https://4ort.xyz/entity/petrus-a-bayer


## References

1. Catalogue of the Library of the Pontifical University of the Holy Cross
2. Czech National Authority Database
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)