Discrete Applied Mathematics
Discrete Applied Mathematics > 2004 > 143 > 1-3 > 307-311
Discrete Applied Mathematics > 2004 > 143 > 1-3 > 155-165
Discrete Applied Mathematics > 2004 > 143 > 1-3 > 266-271
Discrete Applied Mathematics > 2004 > 143 > 1-3 > 298-306