Discrete Mathematics
Discrete Mathematics > 2007 > 307 > 21 > 2478-2483
Discrete Mathematics > 2007 > 307 > 22 > 2775-2785
Discrete Mathematics > 2007 > 307 > 22 > 2808-2819
Discrete Mathematics > 2007 > 307 > 21 > 2478-2483
Discrete Mathematics > 2007 > 307 > 22 > 2775-2785
Discrete Mathematics > 2007 > 307 > 22 > 2808-2819