1. Long-range forecasting: from crystal ball to computer;Armstrong,1985
2. Combining forecasts;Armstrong,2001
3. The organization and improvement of market forecasting;Fildes;Journal of Operations Research Society,1994
4. Forecasting market shares from models for sales;Fok;International Journal of Forecasting,2001
5. State of sales forecasting systems in corporate America;Mentzer;Journal of Business Forecasting,1997