Klaassen, F. (2005). Long Swings in Exchange Rates: Are They Really in the Data? Journal of Business and Economic Statistics, 23:87--95.
Fok, D., \van Dijk\, D. and Franses, \.H. (2005). A multi-level panel STAR model for US manufacturing sectors Journal of Applied Econometrics, 20(6):811--827.
