Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 66 > 1 > 45-50
Statistics and Probability Letters > 2004 > 66 > 2 > 127-133
Statistics and Probability Letters > 2004 > 66 > 1 > 45-50
Statistics and Probability Letters > 2004 > 66 > 2 > 127-133