1. Introduction to the Principles of Transformational Syntax;Akmajian,1975
2. Computational Complexity and Natural Language;Barton,1987
3. Parsing efficiency, computational complexity, and the evaluation of grammatical theories;Berwick;Linguistic Inquiry,1982
4. The role of grammars in models of language use;Berwick;Cognition,1983
5. The cognitive basis for linguistic structures;Bever,1970