Discrete Applied Mathematics
Discrete Applied Mathematics > 2007 > 155 > 10 > 1302-1313
Discrete Applied Mathematics > 2007 > 155 > 16 > 2165-2173
Discrete Applied Mathematics > 2007 > 155 > 10 > 1302-1313
Discrete Applied Mathematics > 2007 > 155 > 16 > 2165-2173