scientific article; zbMATH DE number 3499653
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Publication:4081157
zbMath0318.94041MaRDI QIDQ4081157
Publication date: 1973
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Formal languages and automata (68Q45) Coloring of graphs and hypergraphs (05C15) Directed graphs (digraphs), tournaments (05C20)
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