# Qin Jiushao

> mathematician of Southern Song dynasty, wrote Shu shu jiu zhang (1247)

**Wikidata**: [Q565225](https://www.wikidata.org/wiki/Q565225)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Qin_Jiushao)  
**Source**: https://4ort.xyz/entity/qin-jiushao


## References

1. [Dictionary of Scientific Biography](http://www.encyclopedia.com/topic/Chin_Chiu-shao.aspx)
2. China Biographical Database
3. Virtual International Authority File
4. CiNii Research
5. Shanghai Library Open Data Platform
6. MacTutor History of Mathematics archive
7. Freebase Data Dumps. 2013
8. IdRef
9. Golden