Housing sales in urban Beijing.
Carlos Pestana Barros, Zhongfei Chen, Luis Gil Alana
Applied Economics, vol. 44, 2012, p. 4495-4504.

Technical Efficiency in the Chinese Banking Sector
Carlos Pestana Barros, Zhongfei Chen, Qi Bin Liang, Nicolas Peypoch
Economic Modelling, vol. 28, 2011, p. 2083-2089.