Chvátal, V.; Graham, R. L.; Perold, A. F.; Whitesides, S. H. Combinatorial designs related to the perfect graph conjecture. (English) Zbl 0556.05012 Perfect graphs, Ann. Discrete Math. 21, 197-206 (1984). MSC: 05B20 05C15 05C99 PDFBibTeX XML
Chvatal, V.; Graham, R. L.; Perold, A. F.; Whitesides, S. H. Combinatorial designs related to the strong perfect graph conjecture. (English) Zbl 0403.05017 Discrete Math. 26, 83-92 (1979). MSC: 05B20 05C15 05C99 PDFBibTeX XMLCite \textit{V. Chvatal} et al., Discrete Math. 26, 83--92 (1979; Zbl 0403.05017) Full Text: DOI