Discrete Mathematics
Discrete Mathematics > 2011 > 311 > 10-11 > 872-880
Discrete Mathematics > 2011 > 311 > 17 > 1968-1977
Discrete Mathematics > 2011 > 311 > 20 > 2143-2147
Discrete Mathematics > 2011 > 311 > 10-11 > 872-880
Discrete Mathematics > 2011 > 311 > 17 > 1968-1977
Discrete Mathematics > 2011 > 311 > 20 > 2143-2147