| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Når visen får brod: Om nidviser, smµdeviser, drilleviser og protestsange: et våben for de svage i samfundet | Hardcover | 978-87-980636-2-9 (87-980636-2-6) | 1979 | |
| Spiritual Folk Singing: Nordic and Baltic Protestant Traditions | Paperback | 978-87-635-0566-6 (87-635-0566-5) | 2006 | Kirsten Sass Bak |
| Spiritual Folk Singing: Nordic and Baltic Protestant Traditions | Taschenbuch | 978-87-89160-11-5 (87-89160-11-8) | 2006 | " |
Krage · Kragen · Museum Tusculanum Press