Skyum-Nielsen, N. (1969) “The Early Charters of Eastern England by C. R. Hart. Studies in Early English History edited by H. P. R. Finberg. Leicester University Press, 1966. 280 s. 55 sh”., Historisk Tidsskrift, 12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/50830 (Set: 9 oktober 2026).