# Jan Nordby Gretlund
**Wikidata**: [Q55990946](https://www.wikidata.org/wiki/Q55990946)  
**Source**: https://4ort.xyz/entity/jan-nordby-gretlund


## References

1. BnF authorities
2. Czech National Authority Database
3. Catalog of the German National Library
4. Persée
5. NUKAT
6. Faceted Application of Subject Terminology