# Yngvar Martens
**Wikidata**: [Q19398842](https://www.wikidata.org/wiki/Q19398842)  
**Source**: https://4ort.xyz/entity/yngvar-martens


## References

1. [Digital Archives](https://www.digitalarkivet.no/view/387/pc00000001581010)
2. [Source](http://www.nb.no/nbsok/nb/390449e72a5087f21539d8b408cec9d2?index=2#26)