Discrete Applied Mathematics
Discrete Applied Mathematics > 1999 > 95 > 1-3 > 377-388
Discrete Applied Mathematics > 2004 > 138 > 1-2 > 47-63
Discrete Applied Mathematics > 1999 > 95 > 1-3 > 377-388
Discrete Applied Mathematics > 2004 > 138 > 1-2 > 47-63