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McKee, Terry A. Strict chordal digraphs viewed as graphs with distinguished edges. (English) Zbl 1394.05039 Discrete Appl. Math. 247, 122-126 (2018). MSC: 05C20 05C69 PDFBibTeX XMLCite \textit{T. A. McKee}, Discrete Appl. Math. 247, 122--126 (2018; Zbl 1394.05039) Full Text: DOI