# Wilhelm Hallwachs

> physicist, photoelectric effect (1859-1922)

**Wikidata**: [Q73060](https://www.wikidata.org/wiki/Q73060)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Wilhelm_Hallwachs)  
**Source**: https://4ort.xyz/entity/wilhelm-hallwachs


## References

1. Great Soviet Encyclopedia (1969–1978)
2. Integrated Authority File
3. Hessian Biography
4. Czech National Authority Database
5. VDI-Z Integrierte Produktion
6. Brockhaus Enzyklopädie
7. Proleksis Encyclopedia
8. Croatian Encyclopedia
9. Freebase Data Dumps. 2013
10. Virtual International Authority File
11. Sächsische Biografie
12. Treccani's Enciclopedia on line