Below is a document that I produced, which is about the Norwegian Buhund. 
I hope you find it useful in your research of the breed.
The Norwegian Buhund - By Camille Lambert (PDF)
File Size: 2375 kb
File Type: pdf
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Camille Lambert (Sturtmoor) talks to Channel 4 about Norwegian Buhunds at Crufts 2016 where she won Best of Breed with King (CH Svartkonge Av Sturtmoor (Imp NOR) JW ShCM)