7Bemd,H.M.Cognitive Foundations of Grammar[M].Oxford:Oxford University Press,1997.
8Greenberg,J.H.Some universals of language with special reference to the order of meaningful elements[A].In Greenberg,J.H.(ed.).Universals of Language[C].Cambridge,MA:MIT Press,1963.73-113.
9Hawkins,J.A.A Performance Theory of Order and Constituency[M].Cambridge:Cambridge University Press,1994.
10Hurford,J.R.The roles of expression and representation in language evolution[A].In Alison,W.(ed.).The Transition to Language[C].Oxford:Oxford University Press,2002.311-334.
