Information Processing Letters
Information Processing Letters > 2004 > 89 > 4 > 191-201
Information Processing Letters > 2004 > 89 > 4 > 187-189
Information Processing Letters > 2004 > 89 > 4 > 203-208
Information Processing Letters > 2004 > 89 > 4 > 159-164
Information Processing Letters > 2004 > 89 > 4 > 175-179
Information Processing Letters > 2004 > 89 > 4 > 165-173
Information Processing Letters > 2004 > 89 > 4 > 209-213