Skovgaard-Petersen, I. (1971) “Theodore C. Blegen: The Kensington Rune Stone. New Light on an Old Riddle. St. Paul, Minnesota Historical Society, 1968. x+ 213 s. Ill. $ 4,50”., Historisk Tidsskrift, 12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51166 (Set: 5 december 2025).