近日看文献，涉及到3篇文献，我们学校没买该数据库，特来求助，链接如下!谢谢大家帮忙哈

1.robust test

作者：P K. Sen 杂志：

Encyclopedia of Statistical Sciences（2006）

链接：http://mrw.interscience.wiley.com/emrw/9780471667193/ess/article/ess2295/current/abstract

2.A Note on Signed Rank Tests for the Changepoint Problem

Statistics, Volume 27, Issue 3 & 4 1996 , pages 325 - 338

 http://www.informaworld.com/smpp/content~content=a780008502~db=all

3.A new robust sign test for cointegration

http://www.informaworld.com/smpp/118603844-79448534/content~content=a782643680~db=all~order=page

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