The Computational Difficulty of ID/LP Parsing. - G. Edward Barton Jr. (ACL, 1985)

Parsing with Assertion Sets and Information Monotonicity. - G. Edward Barton Jr.; Robert C. Berwick (IJCAI, 1985)

On the Complexity of ID/LP Parsing. - G. Edward Barton Jr. (Comput. Linguistics, 1985)

Constraint Propagation in Kimmo Systems. - G. Edward Barton Jr. (ACL, 1986)

Computational Complexity in Two-Level Morphology. - G. Edward Barton Jr. (ACL, 1986)