# Otto Keller

> Swiss germanist (1926-)

**Wikidata**: [Q95342132](https://www.wikidata.org/wiki/Q95342132)  
**Source**: https://4ort.xyz/entity/otto-keller-q95342132


## References

1. Catalog of the German National Library
2. [Source](https://books.google.it/books?id=Qd7nAAAAMAAJ)
3. Integrated Authority File
4. general catalog of BnF
5. Virtual International Authority File
6. CiNii Research
7. CONOR.SI