# Rolf Tradin
**Wikidata**: [Q17112827](https://www.wikidata.org/wiki/Q17112827)  
**Source**: https://4ort.xyz/entity/rolf-tradin


## References

1. [book](https://urn.nb.no/URN:NBN:no-nb_digibok_2007112800087)
2. [book](https://urn.nb.no/URN:NBN:no-nb_digibok_2014091708107)
3. [book](https://urn.nb.no/URN:NBN:no-nb_digibok_2008022504087)