Asymmetry, Zero Morphology and Tractability Anna Maria Di Sciullo author Sandiway Fong author 2001-02 text Proceedings of the 15th Pacific Asia Conference on Language, Information and Computation Benjamin K T’sou editor Olivia O.Y. Kwong editor Tom B.Y. Lai editor City University of Hong Kong Hong Kong, China conference publication di-sciullo-fong-2001-asymmetry http://hdl.handle.net/2065/12211 https://aclanthology.org/Y01-1006/ 2001-02 61 72