# Oskar Mader
**Wikidata**: [Q94943760](https://www.wikidata.org/wiki/Q94943760)  
**Source**: https://4ort.xyz/entity/oskar-mader


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-124987)
4. Virtual International Authority File