# Birgit Classen

> researcher

**Wikidata**: [Q87041500](https://www.wikidata.org/wiki/Q87041500)  
**Source**: https://4ort.xyz/entity/birgit-classen


## References

1. Integrated Authority File
2. Virtual International Authority File
3. Czech National Authority Database
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. [MAK](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810557862705606)
6. ORCID iD