# Martin Joseph Haller
**Wikidata**: [Q55901393](https://www.wikidata.org/wiki/Q55901393)  
**Source**: https://4ort.xyz/entity/martin-joseph-haller


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. [Source](http://thesaurus.cerl.org/record/cnp00133540)