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6800 cards from Zetner

Publisher: Elsevier Science
Year: 1977
Weight: 113 KB
Volume: 1
Category: Article
ISSN: 0308-5953
DOI: 10.1016/0308-5953(77)90023-x

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## Abstract Let 𝒯 be the class of unlabeled trees. An unlabeled vertex‐deleted subgraph of a tree __T__ is called a card. A collection of cards is called a deck. We say that the tree __T__ has a deck __D__ if each card in __D__ can be obtained by deleting distinct vertices of __T__. If __T__ is the