Information Processing Letters
Information Processing Letters > 2006 > 97 > 2 > 46-51
Information Processing Letters > 2006 > 97 > 2 > 52-57
Information Processing Letters > 2006 > 97 > 2 > 58-63
Information Processing Letters > 2006 > 97 > 2 > 73-81
Information Processing Letters > 2006 > 97 > 2 > 68-72
Information Processing Letters > 2006 > 97 > 2 > 41-45