# Wilhelm Casper
**Wikidata**: [Q23060754](https://www.wikidata.org/wiki/Q23060754)  
**Source**: https://4ort.xyz/entity/wilhelm-casper


## References

1. Catalog of the German National Library
2. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
3. Virtual International Authority File