# Birger Petersen
**Wikidata**: [Q37998116](https://www.wikidata.org/wiki/Q37998116)  
**Source**: https://4ort.xyz/entity/birger-petersen


## References

1. [BnF authorities](https://catalogue.bnf.fr/ark:/12148/cb16954336c)
2. general catalog of BnF
3. Virtual International Authority File
4. Library of Congress Authorities