题名：Exploring stationarity and structural breaks in commodity prices by the panel data model
作者：Chao-Hsiang Yang， Chi-Tai Lin & Yu-Sheng Kao
期刊年份：Applied Economics Letters   Volume 19, Issue 4, 2012
全文链接：http://www.tandfonline.com/doi/abs/10.1080/13504851.2011.579052