# J. G. F. Leun
**Wikidata**: [Q55122266](https://www.wikidata.org/wiki/Q55122266)  
**Source**: https://4ort.xyz/entity/j-g-f-leun


## References

1. IdRef
2. Catalog of the German National Library
3. [Source](https://www.deutsche-biographie.de/sfz50752.html)