TY - BOOK AU - Frasson C ED - International Conference on Intelligent Tutoring Systems( 2nd : 1992 : Montreal ) ED - International Conference on Intelligent Tutoring Systems 2nd TI - Intelligence tutoring systems : proceedings U1 - 6.3 PY - 1992/// CY - Berlin PB - Springer Verlag KW - Artificial intelligence KW - Computer science ER -