1. Abell, D. F., & Hammond, J. S. (1979). Strategic market planning, problems and anallytical approaches. Prentice-Hall.
2. Axsen J, TyreeHageman J, & Lentz A (2012). Lifestyle practices and pro-environmental technology. Ecological Economics (82), 64-74.
3. Beal, G. M., & Bohlen, J. M. (1957). The diffusion process. Special Report No. 18 (Vol. (reprinted 1-67, 10-71, 5-75, and 11-81)). Ames, Iowa: Cooperative Extension Service, lowa State University of Science and Technology.
4. Beal, G. M., Rogers, E. M., & Bohlen, J. M. (1957). Validity of the concept of stages in the adoption process. Rural Sociology, 22(2), 166–168.
5. Beane, T. P., & Ennis, D. M. (1987). Market segmentation: a review. European Journal of Marketing, 21(5), 20–42.