# Friedrich Ludwig Otto Röhrig
**Wikidata**: [Q60844845](https://www.wikidata.org/wiki/Q60844845)  
**Source**: https://4ort.xyz/entity/friedrich-ludwig-otto-r-hrig


## References

1. CERL Thesaurus
2. IdRef
3. Catalog of the German National Library
4. VcBA (identifier)
5. Trinity College Library
6. MAK
7. Library of Congress Control Number
8. Virtual International Authority File