Discrete Applied Mathematics
Discrete Applied Mathematics > 2011 > 159 > 2-3 > 100-103
Discrete Applied Mathematics > 2011 > 159 > 14 > 1381-1390
Discrete Applied Mathematics > 2011 > 159 > 2-3 > 100-103
Discrete Applied Mathematics > 2011 > 159 > 14 > 1381-1390