# Johannes Thummerer

> German librarian and author (1888–1921)

**Wikidata**: [Q1698499](https://www.wikidata.org/wiki/Q1698499)  
**Source**: https://4ort.xyz/entity/johannes-thummerer


## References

1. Integrated Authority File
2. Students of the Universities of Prague 1882–1945
3. International Standard Name Identifier
4. Dictionary of Czech librarians