Discrete Applied Mathematics
Discrete Applied Mathematics > 1998 > 82 > 1-3 > 219-229
Discrete Applied Mathematics > 1998 > 89 > 1-3 > 243-262
Discrete Applied Mathematics > 1998 > 82 > 1-3 > 219-229
Discrete Applied Mathematics > 1998 > 89 > 1-3 > 243-262