# Fred Singer
**Wikidata**: [Q112500742](https://www.wikidata.org/wiki/Q112500742)  
**Source**: https://4ort.xyz/entity/fred-singer-q112500742


## References

1. Czech National Authority Database
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. National Library of Israel Names and Subjects Authority File