# Petter Tredlen Ølberg
**Wikidata**: [Q118440429](https://www.wikidata.org/wiki/Q118440429)  
**Source**: https://4ort.xyz/entity/petter-tredlen-lberg


## References

1. [Source](https://urn.nb.no/URN:NBN:no-nb_digibok_2018032048059)
2. [Source](https://urn.nb.no/URN:NBN:no-nb_digibok_2016061748090)