1. Amory, P. (2003). People and identity in Ostrogothic Italy: 489–554. Cambridge, MA: Cambridge University Press.
2. Becher, M. (2011). The Franks: Rome’s heirs in the West. In J. P. Arnason (Coed.), The Roman Empire in context: Historical and comparative perspectives (pp. 179–198). Malden, MA: Wiley-Blackwell.
3. Benson, B. L. (2002). Justice without Government: The Merchant Courts of Medieval Europe and their modern counterparts. In D. Beito (Coed.), The voluntary city: Choice community, and civil society (pp. 127–150). Ann Arbor, MI: The University of Michigan Press.
4. Casado Alonso, H. (1995). Las colonias de mercaderes castellanos en Europa (s. XV–XVI). In Castilla y Europa: Comercio y Mercaderes en los siglos XIV, XV y XVI (pp. 15–56). Burgos: Diputación Provincial.
5. Chaney, W. A. (1970). The cult of kingship in Anglo-Saxon England: The transition from Paganism to Christianity. Berkeley: University of California Press.