# Sonja Erfurth
**Wikidata**: [Q4946897](https://www.wikidata.org/wiki/Q4946897)  
**Source**: https://4ort.xyz/entity/sonja-erfurth


## References

1. Sveriges dödbok 1860–2017
2. Virtual International Authority File
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. [LIBRIS. 2007](https://libris.kb.se/katalogisering/hftwwvx1130hx5h)