Olsen, Olaf. 2013. “Means of Exchange. Dealing With Silver in the Viking Age. Ed.: Dagfinn Skre. (Kaupang Excavation Project Publication Series Volume 2 Norske Oldfunn 23). Aarhus University Press, 2008”. Historisk Tidsskrift 111 (1). https://tidsskrift.dk/historisktidsskrift/article/view/56505.