A Simulation of Visual Imagery. - Stephen M. Kosslyn; Steven P. Shwartz (Cogn. Sci., 1977)

Problems With Domain-Independent Natural Language Database Access Systems. - Steven P. Shwartz (ACL, 1982)

Natural Language Data Base Access With Pearl. - Wendy G. Lehnert; Steven P. Shwartz (COLING, 1982)

EXPLORER: A Natural Language Processing System for Oil Exploration. - Wendy G. Lehnert; Steven P. Shwartz (ANLP, 1983)