Thor Andersen, Hans. “The Future of the Metropolis: Berlin, London, Paris, New York. Economic Aspects. Eds.: Hans-Jürgen Ewers, John B. Goddard, and Horst Matzerath”. Geografisk Tidsskrift 88 (januar 1, 1988). Set marts 2, 2026. https://tidsskrift.dk/geografisktidsskrift/article/view/44588.