# Karl Spühler
**Wikidata**: [Q96403523](https://www.wikidata.org/wiki/Q96403523)  
**Source**: https://4ort.xyz/entity/karl-sp-hler


## References

1. IdRef
2. Catalog of the German National Library
3. Historical Dictionary of Switzerland
4. [Source](http://www.hls-dhs-dss.ch/textes/d/D43864.php)