# Ernst Theodor Langer
**Wikidata**: [Q55123009](https://www.wikidata.org/wiki/Q55123009)  
**Source**: https://4ort.xyz/entity/ernst-theodor-langer


## References

1. Integrated Authority File
2. [Source](https://kalliope-verbund.info/DE-611-BF-109824)
3. [Source](https://kalliope-verbund.info/DE-611-BF-10577)
4. [Source](https://www.deutsche-biographie.de/sfz48055.html)