1. Florida, R. (2008): Who's Your City?. Basic Books.
2. Friedmann, J. (1986): The world city hypothesis. Development and Change, 17, 69-83.
3. Kamakura, N. (2012): Functional Changes within large factories in the Tokyo metropolitan area: Case study along the Tokaido Line. Geographical Review of Japan, Series A (Chirigaku Hyoron), 85, 138-156.
4. Kamakura, N. and Matsubara, H. (2012): Functional changes within large factories and evolutionary economic geography: Case study along the Tokaido Line in the Tokyo metropolitan area. Komaba Studies in Human Geography (The University of Tokyo), 20, 57-79.
5. Kawashima, T. (1978): Equality and equilibrium across regions. Journal of Economics (Osaka City University), 79, 1-18.*