Discrete Applied Mathematics
Discrete Applied Mathematics > 1998 > 81 > 1-3 > 169-180
Discrete Applied Mathematics > 1998 > 84 > 1-3 > 55-70
Discrete Applied Mathematics > 1998 > 85 > 1 > 71-86
Discrete Applied Mathematics > 1998 > 89 > 1-3 > 59-73