Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 66 > 1 > 9-17
Statistics and Probability Letters > 2004 > 66 > 4 > 399-405
Statistics and Probability Letters > 2004 > 66 > 1 > 9-17
Statistics and Probability Letters > 2004 > 66 > 4 > 399-405