3Banerjee, A., Dolado, J.J., Galbraith, J. W. and Hendry, D.F.Co - Intergration, Error Corretion, and the Econometric Analysis of Non- Stationary Data [ M].Oxford University Press, 1993.
4Engle, R.and Granger, C.W.J.Co- Intergration and Error Correction: Representation, Estimation and Testing[J]. Econometrica, Vol. 55,1988.