Discrete Mathematics
Discrete Mathematics > 2009 > 309 > 6 > 1711-1713
Discrete Mathematics > 2009 > 309 > 6 > 1284-1293
Discrete Mathematics > 2009 > 309 > 10 > 3106-3112
Discrete Mathematics > 2009 > 309 > 10 > 3385-3392
Discrete Mathematics > 2009 > 309 > 11 > 3588-3594
Discrete Mathematics > 2009 > 309 > 13 > 4235-4240
Discrete Mathematics > 2009 > 309 > 20 > 5943-5949