Statistics & Probability Letters
Statistics and Probability Letters > 2003 > 61 > 4 > 337-346
Statistics and Probability Letters > 2003 > 65 > 4 > 411-417
Statistics and Probability Letters > 2003 > 61 > 4 > 337-346
Statistics and Probability Letters > 2003 > 65 > 4 > 411-417