Search results for: Heping Zhang
Discrete Mathematics > 2011 > 311 > 16 > 1681-1692
Discrete Mathematics > 2009 > 309 > 6 > 1284-1293
Applied Mathematics Letters > 2007 > 20 > 2 > 199-205
Discrete Mathematics > 2011 > 311 > 16 > 1681-1692
Discrete Mathematics > 2009 > 309 > 6 > 1284-1293
Applied Mathematics Letters > 2007 > 20 > 2 > 199-205