Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 68 > 2 > 169-176
Statistics and Probability Letters > 2004 > 68 > 2 > 137-147
Statistics and Probability Letters > 2004 > 68 > 2 > 169-176
Statistics and Probability Letters > 2004 > 68 > 2 > 137-147