Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 66 > 2 > 197-204
Statistics and Probability Letters > 2004 > 67 > 2 > 111-119
Statistics and Probability Letters > 2004 > 66 > 2 > 197-204
Statistics and Probability Letters > 2004 > 67 > 2 > 111-119