Discrete Mathematics
Discrete Mathematics > 2004 > 278 > 1-3 > 23-44
Discrete Mathematics > 2005 > 299 > 1-3 > 208-268
Discrete Mathematics > 2008 > 308 > 24 > 6047-6055
Discrete Mathematics > 2004 > 278 > 1-3 > 23-44
Discrete Mathematics > 2005 > 299 > 1-3 > 208-268
Discrete Mathematics > 2008 > 308 > 24 > 6047-6055