Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 67 > 1 > 73-85
Statistics and Probability Letters > 2004 > 69 > 3 > 261-269
Statistics and Probability Letters > 2004 > 67 > 1 > 73-85
Statistics and Probability Letters > 2004 > 69 > 3 > 261-269