On a certain ordering of the vertices of a tree
František Neuman (1964)
Časopis pro pěstování matematiky
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František Neuman (1964)
Časopis pro pěstování matematiky
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Bohdan Zelinka (1991)
Mathematica Bohemica
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Two types of a distance between isomorphism classes of graphs are adapted for rooted trees.
Bohdan Zelinka (1988)
Czechoslovak Mathematical Journal
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Bohdan Zelinka (1980)
Mathematica Slovaca
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