Discrete Applied Mathematics
Discrete Applied Mathematics > 2007 > 155 > 14 > 1885-1893
Discrete Applied Mathematics > 2007 > 155 > 17 > 2328-2340
Discrete Applied Mathematics > 2007 > 155 > 14 > 1885-1893
Discrete Applied Mathematics > 2007 > 155 > 17 > 2328-2340