# Regina Fels
**Wikidata**: [Q66049039](https://www.wikidata.org/wiki/Q66049039)  
**Source**: https://4ort.xyz/entity/regina-fels


## References

1. [Source](https://dlibra.kul.pl/dlibra/publication/52744/edition/46854/content)
2. [Source](http://anno.onb.ac.at/cgi-content/anno?aid=e2j&datum=19370228&seite=2&zoom=33&ref=anno-search)
3. Encyclopedia of Esperanto