Statistics & Probability Letters
Statistics and Probability Letters > 2007 > 77 > 7 > 693-703
Statistics and Probability Letters > 2007 > 77 > 16 > 1608-1621
Statistics and Probability Letters > 2007 > 77 > 7 > 693-703
Statistics and Probability Letters > 2007 > 77 > 16 > 1608-1621