Vincent Aleven, Bruce M. McLaren, Jonathan Sewall, Martin Van Velsen, Octav Popescu, Sandra Demi, Michael A. Ringenberg, Kenneth R. Koedinger. Example-Tracing Tutors: Intelligent Tutor Development for Non-programmers. I. J. Artificial Intelligence in Education, 26(1):224-269, 2016. [doi]
Abstract is missing.