Rigid undirected graphs with given number of vertices
Pavol Hell (1968)
Commentationes Mathematicae Universitatis Carolinae
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Pavol Hell (1968)
Commentationes Mathematicae Universitatis Carolinae
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Heinz-Jürgen Voss (1977)
Commentationes Mathematicae Universitatis Carolinae
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Václav Chvátal (1965)
Commentationes Mathematicae Universitatis Carolinae
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