Discrete Applied Mathematics
Discrete Applied Mathematics > 2007 > 155 > 10 > 1314-1325
Discrete Applied Mathematics > 2007 > 155 > 17 > 2391-2393
Discrete Applied Mathematics > 2007 > 155 > 10 > 1314-1325
Discrete Applied Mathematics > 2007 > 155 > 17 > 2391-2393