# Bertil Berthelson
**Wikidata**: [Q19976255](https://www.wikidata.org/wiki/Q19976255)  
**Source**: https://4ort.xyz/entity/bertil-berthelson


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. [Source](https://runeberg.org/vemarvem/sthlm45/1050.html)
4. [Source](https://runeberg.org/vemardet/1945/0112.html)
5. [Source](https://runeberg.org/vemardet/1953/0125.html)
6. [Source](https://runeberg.org/vemardet/1955/0119.html)
7. [Source](https://runeberg.org/vemardet/1957/0123.html)
8. [Source](https://runeberg.org/vemarvem/sthlm62/0161.html)
9. [Source](https://runeberg.org/vemardet/1963/0125.html)
10. [Source](https://runeberg.org/vemardet/1967/0108.html)
11. [Source](https://runeberg.org/vemardet/1969/0111.html)
12. [Source](https://runeberg.org/vemardet/1977/0119.html)
13. [Source](https://runeberg.org/vemardet/1981/0122.html)
14. [Source](https://runeberg.org/vemardet/1985/0122.html)