Discrete Applied Mathematics
Discrete Applied Mathematics > 1999 > 95 > 1-3 > 223-239
Discrete Applied Mathematics > 2000 > 98 > 3 > 191-207
Discrete Applied Mathematics > 1999 > 95 > 1-3 > 223-239
Discrete Applied Mathematics > 2000 > 98 > 3 > 191-207