The Danish name for the Scandinavian water monster nicker. It sometimes appears as an old man, but more often as a golden-haired boy who plays the harp most melodiously.
- Bonnerjea, Biren. (1920). A Dictionary of Superstitions and Mythology. Thomson Gale.
- Rose, Carol. (2000). Giants, Monsters, and Dragons: An Encyclopedia of Folklore, Legend, and Myth. New York: W.W. Norton & Company, Inc.