References (continued)
Sawhney, Mohanbir S. And Jehoshua Eliashberg (1996), "A Parsimonious Model for Forecasting Gross Box- Office Revenues of Motion Pictures," Marketing Science, Vol.15, No. 2, 113-131.
Volkmann, John (1951), “Scale of Judgement and Their Implications for Social Psychology,” in Social Psychology at the Crossroads, ed. John H. Rohrer and Muzafer Sherif, New York: Harper, 273-296.