Discrete Mathematics
Discrete Mathematics > 2005 > 292 > 1-3 > 143-157
Discrete Mathematics > 2005 > 295 > 1-3 > 197-202
Discrete Mathematics > 2005 > 301 > 1 > 57-65
Discrete Mathematics > 2005 > 292 > 1-3 > 143-157
Discrete Mathematics > 2005 > 295 > 1-3 > 197-202
Discrete Mathematics > 2005 > 301 > 1 > 57-65