Information Processing Letters
Information Processing Letters > 1998 > 67 > 1 > 9-12
Information Processing Letters > 2000 > 74 > 1-2 > 73-79
Information Processing Letters > 2000 > 76 > 4-6 > 155-162
Information Processing Letters > 1998 > 67 > 1 > 9-12
Information Processing Letters > 2000 > 74 > 1-2 > 73-79
Information Processing Letters > 2000 > 76 > 4-6 > 155-162