Birkelund, Gunn Elisabeth. "2015 – Gunhild Hagestad". sosiologen.no (in Norwegian). Archived from the original on 1 April 2019. Retrieved 29 October 2019.
Birkelund, Gunn Elisabeth. "2015 – Gunhild Hagestad". sosiologen.no (in Norwegian). Archived from the original on 1 April 2019. Retrieved 29 October 2019.