# Frithjof Hager
**Wikidata**: [Q113789580](https://www.wikidata.org/wiki/Q113789580)  
**Source**: https://4ort.xyz/entity/frithjof-hager


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Index Theologicus
4. National Library of Israel Names and Subjects Authority File