Discrete Mathematics
Discrete Mathematics > 2017 > 340 > 6 > 1162-1171
Discrete Mathematics > 2017 > 340 > 9 > 2217-2222
Discrete Mathematics > 2017 > 340 > 9 > 2134-2142
Discrete Mathematics > 2017 > 340 > 6 > 1162-1171
Discrete Mathematics > 2017 > 340 > 9 > 2217-2222
Discrete Mathematics > 2017 > 340 > 9 > 2134-2142