4John Plamenatz, Man and Society: A Critical Examination of Some Important Social and Political Theories from Machiavelli to Marx, Vol. 1, Longman, 1963, pp. 101 - 103.
9Bruce Bueno de Mesquita,“Popes,Kings,and Endogenous Institutions:The Concordat of Worms and the Origins of Sovereignty”,Intentational Stud,s Review,Summer 2000,Vol.2,No.2,P.96.
10Lynn H.Miller,Global Order:Values and Power in International Politics,Boulder and London:Westview Press。1994.P.38,“Note 2”.