# Per S. Ridderstad
**Wikidata**: [Q99198051](https://www.wikidata.org/wiki/Q99198051)  
**Source**: https://4ort.xyz/entity/per-s-ridderstad


## References

1. Sveriges befolkning 2000
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Virtual International Authority File
4. CiNii Research
5. [Source](https://runeberg.org/vemardet/1985/0924.html)
6. [Source](https://runeberg.org/vemardet/1993/0920.html)
7. [Source](https://runeberg.org/vemardet/1995/0926.html)
8. [Source](https://runeberg.org/vemardet/1997/0937.html)
9. [Source](https://runeberg.org/vemardet/2001/0950.html)
10. [LIBRIS. 2018](https://libris.kb.se/wt79bz8f30lnk3n)