# Richard Wagner

> Co-author of The case for Mars

**Wikidata**: [Q19977953](https://www.wikidata.org/wiki/Q19977953)  
**Source**: https://4ort.xyz/entity/richard-wagner-q19977953


## References

1. IdRef
2. Integrated Authority File
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Virtual International Authority File
5. National Library of Israel Names and Subjects Authority File