1. From Old-French to the theory of pro-drop;Adams;Natural Language and Linguistic Theory,1987
2. Arbitrary null objects and unselective binding;Authier,1989
3. On the distribution of PRO in Chinese;Battistella;Natural Language and Linguistic Theory,1985
4. Anaphoric AGR;Borer,1989
5. Coordinate structures and pro;Brandner,1991