Discrete Applied Mathematics
Discrete Applied Mathematics > 2009 > 157 > 7 > 1555-1570
Discrete Applied Mathematics > 2012 > 160 > 3 > 306-320
Discrete Applied Mathematics > 2009 > 157 > 7 > 1555-1570
Discrete Applied Mathematics > 2012 > 160 > 3 > 306-320