# Ludwig Spamer
**Wikidata**: [Q55900547](https://www.wikidata.org/wiki/Q55900547)  
**Source**: https://4ort.xyz/entity/ludwig-spamer


## References

1. CERL Thesaurus
2. Czech National Authority Database
3. Catalog of the German National Library
4. [Source](http://thesaurus.cerl.org/record/cnp01087145)