Information Processing Letters
Information Processing Letters > 2009 > 109 > 5 > 296-300
Information Processing Letters > 2009 > 109 > 5 > 267-272
Information Processing Letters > 2009 > 109 > 5 > 278-285
Information Processing Letters > 2009 > 109 > 5 > 290-295
Information Processing Letters > 2009 > 109 > 5 > 273-277
Information Processing Letters > 2009 > 109 > 5 > 262-266
Information Processing Letters > 2009 > 109 > 5 > 286-289
Information Processing Letters > 2009 > 109 > 5 > 259-261