# Elmer Leupen
**Wikidata**: [Q95867113](https://www.wikidata.org/wiki/Q95867113)  
**Source**: https://4ort.xyz/entity/elmer-leupen


## References

1. Catalog of the German National Library
2. [2001](https://resolver.kb.nl/resolve?urn=urn:gvn:NAGO02:EYE-A40960)