CYC: Toward Programs With Common Sense. - Douglas B. Lenat; Ramanathan V. Guha; Karen Pittman; Dexter Pratt; Mary Shepherd (Commun. ACM, 1990)

Cyc and the Big C: Reading that Produces and Uses Hypotheses about Complex Molecular Biology Mechanisms. - Michael Witbrock; Karen Pittman; Jessica Moszkowicz; Andrew Beck; Dave Schneider; Douglas B. Lenat (AAAI Workshop: Scholarly Big Data, 2015)