(1) Alexander Bickel , The Least Dangerous Branch : The Supreme Court at the Bar of Politics(New Haven , Yale university Press , 1962) , p133
(2) John Rawls ,“ Justice as fairness : political not metaphysical ”, Philosophy and Public Affairs , vol.14 , no.3(summer , 1985) , p223 — 251.
(3) Peter Bachrach and Morton S. Baratz ,“ Two faces of power , American Political Science Review , 56(1962). ”
(4) Joseph Cooper , The Previous Question : its Standing as a Precedent for Cloture in the United States Senate(87th Congress , 2d Session , Document NO.104).