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1. New Properties of Perfectly Orderable Graphs and Strongly Perfect Graphs
:New Properties of Perfectly Orderable Graphs and Strongly Perfect Graphs. 1. ed. Bonn : Inst. für Ökonometrie und Operations Research, 1990. 16 s. Report, No.90641 - OR. [Počet ex. : 1, z toho voľných 1, prezenčne 0]