Zhao, M., Derudder, B. and Huang, J. (2017) “Polycentric development in China’s mega-city regions, 2001-08: A comparison of the Yangtze and Pearl River Deltas”, DIE ERDE – Journal of the Geographical Society of Berlin, 148(1), pp. 1–13. doi: 10.12854/erde-148-26.