Information Processing Letters
Information Processing Letters > 2000 > 73 > 5-6 > 207-212
Information Processing Letters > 2000 > 74 > 5-6 > 257-262
Information Processing Letters > 2000 > 75 > 1-2 > 9-12
Information Processing Letters > 2000 > 75 > 4 > 175-180
Information Processing Letters > 2000 > 75 > 6 > 247-253
Information Processing Letters > 2000 > 76 > 1-2 > 83-90