Information Processing Letters
Information Processing Letters > 2015 > 115 > 12 > 945-949
Information Processing Letters > 2016 > 116 > 2 > 107-110
Information Processing Letters > 2016 > 116 > 9 > 574-577
Information Processing Letters > 2015 > 115 > 12 > 945-949
Information Processing Letters > 2016 > 116 > 2 > 107-110
Information Processing Letters > 2016 > 116 > 9 > 574-577