Statistics & Probability Letters
Statistics and Probability Letters > 2003 > 61 > 4 > 395-401
Statistics and Probability Letters > 2003 > 63 > 4 > 417-423
Statistics and Probability Letters > 2003 > 61 > 4 > 395-401
Statistics and Probability Letters > 2003 > 63 > 4 > 417-423