The Architecture of Why2-Atlas: A Coach for Qualitative Physics Essay Writing. - Kurt VanLehn; Pamela W. Jordan; Carolyn P. Rosé; Dumisizwe Bhembe; Michael Böttner; Andy Gaydos; Maxim Makatchev; Umarani Pappuswamy; Michael A. Ringenberg; Antonio Roque; Stephanie Siler; Ramesh Srivastava (Intelligent Tutoring Systems, 2002)