Discrete Mathematics
Discrete Mathematics > 1999 > 199 > 1-3 > 227-231
Discrete Mathematics > 1999 > 202 > 1-3 > 239-248
Discrete Mathematics > 1999 > 203 > 1-3 > 71-82
Discrete Mathematics > 1999 > 199 > 1-3 > 227-231
Discrete Mathematics > 1999 > 202 > 1-3 > 239-248
Discrete Mathematics > 1999 > 203 > 1-3 > 71-82