# Gustaf Ljunggren
**Wikidata**: [Q5961135](https://www.wikidata.org/wiki/Q5961135)  
**Source**: https://4ort.xyz/entity/gustaf-ljunggren-q5961135


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Dictionary of Swedish National Biography
4. IdRef
5. LIBRIS. 2012