Discrete Applied Mathematics
Discrete Applied Mathematics > 2007 > 155 > 2 > 92-102
Discrete Applied Mathematics > 2007 > 155 > 15 > 2031-2038
Discrete Applied Mathematics > 2007 > 155 > 17 > 2303-2311
Discrete Applied Mathematics > 2007 > 155 > 18 > 2601-2611