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Discrete Mathematics > 2013 > 313 > 19 > 2034-2053
Graphs and Combinatorics > 2013 > 29 > 5 > 1459-1469
Acta Mathematica Sinica, English Series > 2013 > 29 > 9 > 1773-1780
Discrete Mathematics > 2013 > 313 > 19 > 2034-2053
Graphs and Combinatorics > 2013 > 29 > 5 > 1459-1469
Acta Mathematica Sinica, English Series > 2013 > 29 > 9 > 1773-1780