Representing Knowledge Gaps Effectively. - Alan Belasco; Jon Curtis; Robert C. Kahlert; Charles Klein; Corinne Mayans; Pace Reagan (PAKM, 2004)

Tracking Quantity Fluctuations Using STT. - Robert C. Kahlert; Benjamin Rode; David Baxter; Michael Witbrock; Kenneth D. Forbus; Larry Birnbaum; Purvesh Shah; Dave Schneider; Kathy Panton; Alan Belasco; David Crabbe (AAAI Fall Symposium: Capturing and Using Patterns for Evidence Detection, 2006)