1. Long-range forecasting: From crystal ball to computer;Armstrong,1978
2. Armstrong, J. S., & Collopy, F., 1998. Speculations about seasonal factors. In full text on Researchers' page at http://forecastingprinciples.com.
3. Comparison of seasonal estimation methods in multi-item short-term forecasting;Bunn;International Journal of Forecasting,1999
4. Forecasting trends in time-series;Gardner;Management Science,1985
5. The forecasting accuracy of major time-series methods;Makridakis,1984