Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 68 > 3 > 287-295
Statistics and Probability Letters > 2004 > 69 > 1 > 63-68
Statistics and Probability Letters > 2004 > 68 > 3 > 287-295
Statistics and Probability Letters > 2004 > 69 > 1 > 63-68