Tramp: An interpretive associative processor with deductive capabilities. - William L. Ash; Edgar H. Sibley (ACM National Conference, 1968)

The case for a generalized graphic problem solver. - Edgar H. Sibley; Robert W. Taylor; William L. Ash (AFIPS Spring Joint Computing Conference, 1970)

A Language And Data Structure For Fact Retrieval. - William L. Ash (1971)

Mxec: Parallel Processing with an Advanced Macro Facility. - William L. Ash (Commun. ACM, 1981)