Discrete Applied Mathematics
Discrete Applied Mathematics > 1996 > 71 > 1-3 > 153-169
Discrete Applied Mathematics > 1997 > 79 > 1-3 > 223-245
Discrete Applied Mathematics > 1996 > 71 > 1-3 > 153-169
Discrete Applied Mathematics > 1997 > 79 > 1-3 > 223-245