6Gerald Segal,The Great Power Triangle,New York:St.Martin's Press,1982.
7Lowell Dittmer,"The Strategic Triangle:An Elementary Game Theoretical Analysis",World Politics,Vol.33,No.4,July 1981,pp.485-516.
8See Robert S.Boss,ed.,China,the United States,and the Soviet Union:Tri-polarity and Policy Making in the Cold War,Armonk,N.Y.:M.E.Sharpe,1993,p.4.
9Theodore Caplow,"A Theory of Coalitions in the Triad",American Sociological Review,Vol.21,No.4,Au-gust 1956,pp.489-493.
10Brian Healy and Author Stein,"The Balance of Power in International History:Theory and Reality",Journal of Conflict Resolution,Vol.17,No.1,March 1973,pp.33-61.
