# Rolf Kramer
**Wikidata**: [Q94922424](https://www.wikidata.org/wiki/Q94922424)  
**Source**: https://4ort.xyz/entity/rolf-kramer-q94922424


## References

1. Catalog of the German National Library
2. Czech National Authority Database
3. Catalogue of the Library of the Pontifical University of the Holy Cross