Discrete Applied Mathematics
Discrete Applied Mathematics > 2003 > 126 > 2-3 > 275-289
Discrete Applied Mathematics > 2006 > 154 > 3 > 564-586
Discrete Applied Mathematics > 2003 > 126 > 2-3 > 275-289
Discrete Applied Mathematics > 2006 > 154 > 3 > 564-586