HOÁNG, Ghính T. Algorithms for Minimum Weighted Colouring of Perfectly Ordered, Comparability, Triangulated, and Clique Separable Graphs. 1. ed. Bonn : Inst. für Ökonometrie und Operations Research, 1990. 12 s. Report, 90632 - OR. [Copy count : 1, currently available 1, at library only 0]