//-->
On the (Mis)Specification of Seasonality and Its Consequences: an Empirical Investigation with U.S. Data.
Ghysels, E., (1992)
Testing for Unit Roots in Sesonal Time Series ; Some Theoretical and Monte Carlo Investigation.
Ghysels, E., (1991)
Generalized Predictive Tests and Structural Change Analysis in Econometrics.
Dufour, J.M., (1992)