TY  - BOOK
AU  - Abelson, Robert P.
TI  - Differences between belief and knowledge systems+ / Robert -P. Abelson
CY  - [s.l.] : Cognitive Science Society
N1  - "+This paper is a slightly revised version of a symposium t-alk delivered at the First Annual Meeting of the Cognitive -Science Society".En: Cognitive science 3, 355-366 (1979)
ER  -