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2 Pesetsky, David, "Wh-in-Situ: Movement and Unselective Binding in E. J. Reuland and A.G.B. ter Meulen (eds) The Representation of (In) definiteness" Cambridge MA 98-129, 1987
3 Bresnan, Joan, "Variables in the theory of transformations, In Formal Syntax" Academic Press 157-196, 1977
4 Kornfilt, Jaklin, "Unmasking covert complementizer agreement" 2004
5 Haegeman, Liliane, "Thinking Syntactically" Blackwell Textbooks in Linguistics 2006
6 Chomsky, Noam, "The Minimalist Program" MIT Press 1995b
7 Pesetsky, David, "T-to-C movement: causes and consequences, In Ken Hale: a life in language" MIT Press 355-426, 2001
8 Georgopoulos, Carol, "Syntactic variables" Dordrecht Kluwer 1991b
9 Lasnik, Howard, "Syntactic structures revisited: Contemporary lectures on classic transformational theory" MIT Press 2000
10 Carstens, Viki, "Rethinking complementizer agreement: Agree with a Case-checked goal" 34 : 393-412, 2003
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