A characterization of (Gamma)(alpha)(k)-perfect graphs
Discrete Math. 224 (2000), no. 1-3, 265--271.
BibTex references
@Article\{DRV00a,
author = "Dohmen, Lothar and Rautenbach, Dieter and Volkmann, Lutz",
title = "A characterization of (Gamma)(alpha)(k)-perfect graphs",
journal = "Discrete Math.",
number = "1-3",
volume = "224",
pages = "265--271",
year = "2000",
}