1. Upward agree is superior;Bjorkman;Lingbuzz,2014
2. On the locality and motivation of move and agree: An even more minimal theory;Bošković;Linguistic Inquiry,2007
3. Carlson, G., 1977. Reference to Kinds in English, Ph. D. dissertation, University of Massachusetts, Amherst.
4. Lectures on Government and Binding;Chomsky,1981
5. Some notes on economy of derivation and representation;Chomsky,1991