[graph1_on_article [an article, Coverage: knowledge_representation, title: "What Is a Knowledge Representation?", Creator: "Randall Davis, Howard E. Shrobe and Peter Szolovits", object of: (a publishing, time: 1993 , place: (the object_section "14:1 p17-33", part of: AI_Magazine)), url: http://medg.lcs.mit.edu/ftp/psz/k-rep.html] ](06/05/2024);