Nicol, Donald M. (1984). The Despotate of Epiros, 1267–1479: A Contribution to the History of Greece in the Middle Ages. Cambridge: Cambridge University Press. ISBN 978-0-521-13089-9.
Nicol, Donald M. (1984). The Despotate of Epiros, 1267–1479: A Contribution to the History of Greece in the Middle Ages. Cambridge: Cambridge University Press. ISBN 978-0-521-13089-9.