Equivalence Between AND/OR Graphs and Context-Free Grammars CACM July, 1973 Hall, P. A. V. artificial intelligence, AND/OR graphs, language theory, context-free grammars 3.60 3.64 5.23 CA730710 JB January 23, 1978 11:21 AM 2476 5 2476 2476 5 2476 2476 5 2476