# Peter Crüger

> German astronomer and mathematician (1580-1639)

**Wikidata**: [Q73013](https://www.wikidata.org/wiki/Q73013)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Peter_Crüger)  
**Source**: https://4ort.xyz/entity/peter-cr-ger


## References

1. Integrated Authority File
2. International Standard Name Identifier
3. Virtual International Authority File
4. Freebase Data Dumps. 2013
5. LIBRIS. 2011
6. Sejm-Wielki.pl
7. Provenio