Statistics & Probability Letters
Statistics and Probability Letters > 2003 > 63 > 2 > 123-131
Statistics and Probability Letters > 2003 > 63 > 3 > 249-257
Statistics and Probability Letters > 2003 > 63 > 4 > 435-440
Statistics and Probability Letters > 2003 > 64 > 4 > 415-424
Statistics and Probability Letters > 2003 > 64 > 4 > 393-402