scientific article; zbMATH DE number 3328877
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Publication:5607111
zbMath0206.52603MaRDI QIDQ5607111
Publication date: 1967
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Enumeration in graph theory (05C30) Orthogonal arrays, Latin squares, Room squares (05B15) Combinatorial aspects of matroids and geometric lattices (05B35)
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