Redocumentation: addressing the maintenance legacy. - Gary L. Richardson; Earl D. Hodil (AFIPS National Computer Conference, 1984)

Knowledge-Based Systems in the Commercial Environment. - Earl D. Hodil; Charles W. Butler; Gary L. Richardson (IBM Syst. J., 1986)

Building Knowledge-Based Systems with Procedural Languages. - Charles W. Butler; Earl D. Hodil; Gary L. Richardson (IEEE Expert, 1988)