Covering Edges by Cliques with Regard to Keyword Conflicts and Intersection Graphs.

Lawrence T. Kou Larry J. Stockmeyer C. K. Wong Covering Edges by Cliques with Regard to Keyword Conflicts and Intersection Graphs. 135-139 1978 21 Commun. ACM 2 db/journals/cacm/cacm21.html#KouSW78