# Walter Hjalmar Kotas
**Wikidata**: [Q94837006](https://www.wikidata.org/wiki/Q94837006)  
**Source**: https://4ort.xyz/entity/walter-hjalmar-kotas


## References

1. Catalog of the German National Library
2. Literatur in Österreich 1938-1945, Band 1: Steiermark
3. BnF authorities
4. Czech National Authority Database
5. Virtual International Authority File