# Jan Fersman
**Wikidata**: [Q24237122](https://www.wikidata.org/wiki/Q24237122)  
**Source**: https://4ort.xyz/entity/jan-fersman


## References

1. [Collection of Registry Books at Prague State Archive](https://ebadatelna.soapraha.cz/d/3889/66#)
2. [Source](http://anno.onb.ac.at/cgi-content/anno?aid=apr&datum=18890418&seite=3&zoom=33&query=%22Ferschmann%22&provider=P02&ref=anno-search)
3. [Source](http://kramerius.nkp.cz/kramerius/PShowPageDoc.do?id=9089861)
4. Czech National Authority Database
5. [Source](http://ebadatelna.soapraha.cz/d/3888/286#)