On(2n+1)-Contractible Graphs and 2n-Pairs Contractible Graphs
Hong LIN School of Sciences,Jimei University,Xiamen 361021,P.R.China Xiao Feng GUO School of Mathematical Sciences,Xiamen University,Xiamen 361005,P.R.China
Acta Mathematica Sinica, Chinese Series
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2009, (02): 137
-146
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DOI: 10.12386/A2009sxxb0040
