1. Alonso, W. (1970). The economics of urban size. Papers of the Regional Science Association, 26, 67–83.
2. Becker, C., & Morrison, A. R. (1999). Urbanisation in transforming economies. In P. Cheshire & E. S. Mills (Eds.), Handbook of regional and urban economics, Vol. 3. Applied urban economics (Vol. 3). New York: North-Holland.
3. Brotchie, J., Newton, P., Hall, P., & Nijkamp, P. (1985). The future of urban form: The impact of new technology. London: Routledge.
4. Carlino, G. A. (1979). Increasing returns to scale in metropolitan manufacturing. Journal of Regional Science, 19, 363–373.
5. Carter, T. J. (1998). Urban productivity, urban unemployment, and labour market policies. Regional Science and Urban Economics, 28, 329–344.