LARSEN, S. Gudmund Schütte: Ptolemy’s Maps of Northern Europe a Reconstruction of the Prototypes. Copenhagen 1917. Geografisk Tidsskrift - Danish Journal of Geography, [S. l.], v. 24, 1918. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/47012. Acesso em: 16 aug. 2024.