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Discrete Mathematics > 2012 > 312 > 7 > 1386-1391
Graphs and Combinatorics > 2010 > 26 > 1 > 77-93
Discrete Applied Mathematics > 2009 > 157 > 13 > 2964-2968
Discrete Applied Mathematics > 2009 > 157 > 13 > 2846-2858
Discrete Mathematics > 2008 > 308 > 11 > 2325-2329
Discrete Mathematics > 2003 > 269 > 1-3 > 265-271
Discrete Mathematics > 2003 > 262 > 1-3 > 113-119