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Publication:3885764
zbMath0443.05003MaRDI QIDQ3885764
Publication date: 1978
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Permutations, words, matrices (05A05) Paths and cycles (05C38) Directed graphs (digraphs), tournaments (05C20) Galois correspondences, closure operators (in relation to ordered sets) (06A15)
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