Information Processing Letters
Information Processing Letters > 2004 > 91 > 5 > 227-232
Information Processing Letters > 2004 > 91 > 5 > 221-225
Information Processing Letters > 2004 > 91 > 5 > 233-244
Information Processing Letters > 2004 > 91 > 5 > 245-250
Information Processing Letters > 2004 > 91 > 5 > 201-210
Information Processing Letters > 2004 > 91 > 5 > 211-219