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Czechoslovak Mathematical Journal > 2017 > 67 > 1 > 151-169
Discussiones Mathematicae Graph Theory > 2010 > 30 > 4 > 619-636
Czechoslovak Mathematical Journal > 2017 > 67 > 1 > 151-169
Discussiones Mathematicae Graph Theory > 2010 > 30 > 4 > 619-636