Discrete Mathematics
Discrete Mathematics > 2009 > 309 > 8 > 2571-2574
Discrete Mathematics > 2009 > 309 > 8 > 2488-2496
Discrete Mathematics > 2009 > 309 > 8 > 2535-2537
Discrete Mathematics > 2009 > 309 > 8 > 2571-2574
Discrete Mathematics > 2009 > 309 > 8 > 2488-2496
Discrete Mathematics > 2009 > 309 > 8 > 2535-2537