# Ondrej Demo
**Wikidata**: [Q112422510](https://www.wikidata.org/wiki/Q112422510)  
**Source**: https://4ort.xyz/entity/ondrej-demo


## References

1. [2017](https://kultura.pravda.sk/hudba/clanok/435805-ondrej-demo-kazda-ludova-piesen-ma-svoje-poslanie/)
2. Czech National Authority Database
3. [Source](https://www.hf.sk/documents/dokumenty9/176_1991-2022_05_pt.pdf)
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. [2020](https://moja.soza.sk/magazin/343/opustili-nas-ondrej-demo-jan-jamriska-a-andrej-turok)