First step: Confirm if "Borghild Dahl" is a person. Maybe an academic, author, or researcher? Let me do a quick search. Hmm, there's very little information on Borghild Dahl. Maybe it's a typo or a misremembered name? Could be someone like Astrid Lindgren's character, but that's unlikely. Alternatively, maybe a person who wrote a thesis or some article.