# Ruben L. Oppenheimer
**Wikidata**: [Q2347066](https://www.wikidata.org/wiki/Q2347066)  
**Source**: https://4ort.xyz/entity/ruben-l-oppenheimer


## References

1. RKDartists
2. Comiclopedia
3. [Source](http://www.nationaalontwerparchief.nl/ontwerper/Oppenheimer%2C+Ruben+L.)
4. [Source](http://www.nationaalontwerparchief.nl/ontwerper/Oppenheimer,+Ruben+L.)
5. [2005](https://n2t.net/ark:/33862/collect/660360)