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Perfect graph
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== External links == * [http://www.cs.concordia.ca/~chvatal/perfect/spgt.html ''The Strong Perfect Graph Theorem''] by [[Václav Chvátal]]. * [http://www.aimath.org/WWN/perfectgraph/ Open problems on perfect graphs], maintained by the [[American Institute of Mathematics]]. * [http://www.cs.concordia.ca/~chvatal/perfect/problems.html ''Perfect Problems''], maintained by Václav Chvátal. * [http://www.graphclasses.org/index.html Information System on Graph Class Inclusions]: [http://www.graphclasses.org/classes/gc_56.html perfect graph] [[Category:Perfect graphs| ]]
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