Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 66 > 3 > 289-301
Statistics and Probability Letters > 2004 > 67 > 2 > 133-140
Statistics and Probability Letters > 2004 > 66 > 3 > 289-301
Statistics and Probability Letters > 2004 > 67 > 2 > 133-140