# Johannes Tönnich
**Wikidata**: [Q60832872](https://www.wikidata.org/wiki/Q60832872)  
**Source**: https://4ort.xyz/entity/johannes-t-nnich


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. [Source](http://thesaurus.cerl.org/record/cnp00446299)
5. HMML Authority File