# Abraham Gumplowicz
**Wikidata**: [Q104538126](https://www.wikidata.org/wiki/Q104538126)  
**Source**: https://4ort.xyz/entity/abraham-gumplowicz


## References

1. Sejm-Wielki.pl
2. CERL Thesaurus
3. Catalog of the German National Library
4. MAK
5. Polski Słownik Judaistyczny
6. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810663200405606)
7. [Source](https://wbis.degruyter.com/biographic-document/P22024)
8. HMML Authority File