# Ludger Bernhard
**Wikidata**: [Q97066544](https://www.wikidata.org/wiki/Q97066544)  
**Source**: https://4ort.xyz/entity/ludger-bernhard


## References

1. Virtual International Authority File
2. Catalog of the German National Library
3. archINFORM
4. [Source](https://pust.urbe.it/cgi-bin/koha/opac-authoritiesdetail.pl?marc=1&authid=78209)
5. VcBA (identifier)
6. NUKAT
7. Bibliography of the History of the Czech Lands
8. [archINFORM](https://www.archinform.net/service/wd_aiarch.php)