# Martin-Opitz-Library

> library in Germany

**Wikidata**: [Q1255227](https://www.wikidata.org/wiki/Q1255227)  
**Source**: https://4ort.xyz/entity/martin-opitz-library


## References

1. Open ISNI for Organizations
2. Virtual International Authority File
3. directory of German Library Codes
4. Czech National Authority Database
5. Aligned ISNI and Ringgold identifiers for institutions