3Donald W. Treadgold, Freedom: A History, New York University Press (1990), p. 134
4Brian Tierney, "Freedom and the Medieval Church" , in R.W. Davis (ed.), The Origins of Modern Freedom in the West, Stanford University Press (1995), p. 64, at 67.
5Brian Tierney, "Freedom and the Medieval Church" , in R.W. Davis (ed.), The Origins of Modern Freedom in the West, Stanford University Press (1995), p. 67.
6Donald W. Treadgold, Freedom: A History, New York University Press (1990), p. 104-105
7Brian Tierney, "Freedom and the Medieval Church" , in R.W. Davis (ed.), The Origins of Modern Freedom in the West, Stanford University Press (1995), p. 68-69.
8Donald W. Treadgold, Freedom: A History, New York University Press (1990), p. 107-108
9Donald W. Treadgold, Freedom: A History, New York University Press (1990), p. 117-118
10Herbert J. Muller, Freedom in the Western World, New York: Harper and Row (1963), p.90