# Thomas Siegfried Ring
**Wikidata**: [Q105867806](https://www.wikidata.org/wiki/Q105867806)  
**Source**: https://4ort.xyz/entity/thomas-siegfried-ring


## References

1. Catalog of the German National Library
2. [Source](https://kalliope-verbund.info/DE-611-BF-121132)
3. CERL Thesaurus
4. NUKAT
5. MAK
6. Czech National Authority Database
7. Alvin
8. [Source](https://wikidata-externalid-url.toolforge.org/?p=1207&url_prefix=http://nukat.edu.pl/aut/&id=n2019218622)
9. [Source](http://thesaurus.cerl.org/record/cnp00480192)
10. [Source](http://www.alvin-portal.org/alvin/view.jsf?pid=alvin-person%3A17275)
11. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810665007005606)