Referencias 1. Ver Norman Davies, Europe. A history. A Panorama of Europe, East, and West, from the Ice Age to the Cold War, from the Urals to Gibraltar, 1998, HarperPerennial, NY, p. 361. La version original es de 1996, publicada por Oxford University Press. 2. Otras universidades del S. XII y XIII: Salerno 1173, Palencia […]