Volume 18, Issue 70, February 2016, Pages 23-48
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Volume 13, Issue 50, February 2011, Pages 5-35
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Volume 13, Issue 47, June 2010, Pages 5-36
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Volume 12, Issue 45, December 2009, Pages 81-108
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Volume 6, Issue 19, June 2003, Pages 77-102
Robert A.Dahl; davoud gharayagh zandi