Default Logic Revisited. - James P. Delgrande; W. Ken Jackson (KR, 1991)

Improving Intervals. - W. Ken Jackson; F. Warren Burton (J. Funct. Program., 1993)

Alternative Approaches to Default Logic. - James P. Delgrande; Torsten Schaub; W. Ken Jackson (Artif. Intell., 1994)

A Definite and Unfoldable, Partially Deterministic Language. - W. Ken Jackson; F. Warren Burton (Comput. J., 1994)

Committing to User Choices in Mixed Initiative CSPs. - W. Ken Jackson; William S. Havens (SCAI, 1995)

Detecting Unsatisfiable CSPs by Coloring the Micro-Structure. - Daya Ram Gaur; W. Ken Jackson; William S. Havens (AAAI/IAAI, 1997)