Discrete Mathematics
Discrete Mathematics > 2017 > 340 > 2 > 140-144
Discrete Mathematics > 2017 > 340 > 4 > 822-831
Discrete Mathematics > 2017 > 340 > 9 > 2307-2317
Discrete Mathematics > 2017 > 340 > 2 > 140-144
Discrete Mathematics > 2017 > 340 > 4 > 822-831
Discrete Mathematics > 2017 > 340 > 9 > 2307-2317