# Martin Sigmund Gammersfelder
**Wikidata**: [Q55906568](https://www.wikidata.org/wiki/Q55906568)  
**Source**: https://4ort.xyz/entity/martin-sigmund-gammersfelder


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. [Source](http://thesaurus.cerl.org/record/cnp01293672)