Geodesic
On a perfect problem
Discussiones Mathematicae. Graph Theory, Tome 26 (2006) no. 2, pp. 273-277

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We solve Open Problem (xvi) from Perfect Problems of Chvátal [1] available at ftp://dimacs.rutgers.edu/pub/perfect/problems.tex: Is there a class C of perfect graphs such that
Keywords: hereditary classes, perfect graphs 
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Zverovich, Igor. On a perfect problem. Discussiones Mathematicae. Graph Theory, Tome 26 (2006) no. 2, pp. 273-277. http://geodesic.mathdoc.fr/item/DMGT_2006_26_2_a7/