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5 Tuggy, D, "The Thing Is Is that People Talk that Way. In Cognitive Linguistics in the Redwoods: The Expansion of a New Paradigm in Linguistics" Mouton de Gruyter 713-752, 1996
6 Bowers. J, "The Syntax of Predication" 24 : 591-656, 1993
7 Gundel, J. K, "The Role of Topic and Comment in Linguistic Theory" Garland 1983
8 Bolinger, D. L, "The Remarkable Double Is" 9 : 39-40, 1987
9 Shapiro, M, "The Reduplicative Copula is is" 77 : 305-312, 2002
10 Moro, A., "The Raising of Predicates" Cambridge University Press 1997
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