Structured models of scientific concepts for organizing, accessing, and using learning materials. - Terence R. Smith; Marcia Lei Zeng; Olga Agapova; Olha A. Buchel; Michael Freeston; James Frew; Linda L. Hill; Laura Smart; Tim Tierney; Alex Ushakov (JCDL, 2002)

The ADEPT Concept-Based Digital Learning Environment. - Terence R. Smith; Dan Ancona; Olha A. Buchel; Michael Freeston; W. Heller; R. Nottrott; Tim Tierney; Alex Ushakov (ECDL, 2003)