1. Baltagi, B.H. (1990), “The Differencing Test in a Regression with Equicorrelated Disturbances,” Econometric Theory, Problem 90.4.5, 6: 488.
2. Baltagi, B.H. (1998), “Regression Specification Error Test as A Gauss-Newton Regression,” Econometric Theory, Problem 98.4.3, 14: 526.
3. Belsley, D.A., E. Kuh and R.E. Welsch (1980), Regression Diagnostics (Wiley: New York).
4. Box, G.E.P. and D.R. Cox (1964), “An Analysis of Transformations,” Journal of the Royal Statistical Society, Series B, 26: 211–252.
5. Brown, R.L., J. Durbin, and J.M. Evans (1975), “Techniques for Testing the Constancy of Regression Relationships Over Time,” Journal of the Royal Statistical Society 37:149–192.