Discrete Applied Mathematics
Discrete Applied Mathematics > 1998 > 87 > 1-3 > 229-243
Discrete Applied Mathematics > 1998 > 89 > 1-3 > 181-195
Discrete Applied Mathematics > 1998 > 87 > 1-3 > 229-243
Discrete Applied Mathematics > 1998 > 89 > 1-3 > 181-195