Hansen, V. (1988) “The history of cartography. Vol 1: Cartography in prehistoric, ancient, and Medieval Europe and the Mediterranean. Ed. byJ.B. Harley and David Woodward”., Geografisk Tidsskrift, 88. Tilgængelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/44523 (Set: 6 december 2025).