1. Diagnosing competition in an industrial market;Alsem,1990
2. De Reclamemarkt na de Komst van Commerciële Televisie;Alsem;Economisch Statistische Berichten,1991
3. Long-range Forecasting, from Crystal Ball to Computer;Armstrong,1985
4. Aggregating subjective forecasts: some empirical results;Ashton;Management Science,1985
5. Database models and managerial intuition: 50% model + 50% manager;Blattberg;Management Science,1990