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Testing equality between sets of coefficients after a preliminary test for equality of disturbance variances in two linear regressions
Toyoda, Toshihisa, (1986)
Testing linear hypothesis on regression coefficients after a pre-test for disturbance variance
Ohtani, Kazuhiro, (1985)
Estimation of regression coefficients after a preliminary test for homoscedasticity
Ohtani, Kazuhiro, (1980)