# Otto Conzelmann
**Wikidata**: [Q94931278](https://www.wikidata.org/wiki/Q94931278)  
**Source**: https://4ort.xyz/entity/otto-conzelmann


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Faceted Application of Subject Terminology
4. National Library of Israel Names and Subjects Authority File