# Irwin Kra

> American mathematician

**Wikidata**: [Q1673303](https://www.wikidata.org/wiki/Q1673303)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Irwin_Kra)  
**Source**: https://4ort.xyz/entity/irwin-kra


## References

1. Freebase Data Dumps
2. Integrated Authority File
3. Czech National Authority Database
4. [Source](http://www.ams.org/fellows_by_year.cgi?year=2013)
5. [Source](http://www.ams.org/news?news_id=1680)
6. Mathematics Genealogy Project
7. International Standard Name Identifier
8. Virtual International Authority File
9. CiNii Research
10. Autoritats UB