# Leo Slezak

> Austrian opera singer (1873–1946)

**Wikidata**: [Q78586](https://www.wikidata.org/wiki/Q78586)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Leo_Slezak)  
**Source**: https://4ort.xyz/entity/leo-slezak


## References

1. Integrated Authority File
2. Archivio Storico Ricordi
3. [REGO](https://aleph.vkol.cz/F/?func=find-c&ccl_term=sys=000006427&local_base=svk04)
4. [Olomouc City Library regional database](https://tritius.kmol.cz/authority/775012)
5. BnF authorities
6. International Standard Name Identifier
7. Virtual International Authority File
8. CiNii Research
9. Bibliothèque nationale de France
10. MusicBrainz
11. Encyclopædia Britannica Online
12. SNAC
13. Find a Grave
14. filmportal.de
15. Brockhaus Enzyklopädie
16. Czech National Authority Database
17. Croatian Encyclopedia
18. Munzinger Personen
19. Freebase Data Dumps. 2013
20. CONOR.SI
21. The Movie Database
22. [Source](http://www.musiklexikon.ac.at/ml/ml-beacon.txt)
23. Bibliography of the History of the Czech Lands
24. performing-arts.ch