TY  - BOOK
AU  - LESGOLD,ALAN (ED), MANDL,HEINZ (ED)
TI  - LEARNING ISSUES FOR INTELLIGENT TUTORING SYSTEMS (COGNITIVE SCIENCE)
SN  - KBCS
U1  - 921 
PY  - 1988///
CY  - NEW YORK
PB  - SV
N1  - BR-752
ER  -