Statistics & Probability Letters
Statistics and Probability Letters > 2004 > 66 > 3 > 363-368
Statistics and Probability Letters > 2004 > 66 > 4 > 449-456
Statistics and Probability Letters > 2004 > 66 > 3 > 363-368
Statistics and Probability Letters > 2004 > 66 > 4 > 449-456