Cui, H., S. Xu, Y. Fang, R. Welsch, and C. Zhang, Working Paper. December 2017.
Cui, H., L. Hu, G. Wu, Y. Fang, and R. Welsch, Working Paper. December 2017.
Ng, C., H. Yu, and Roy Welsch, Working Paper. December 2017.
Xie, W., and Roy Welsch, Working Paper. December 2017.
Cui, H., S. Liu, Z. Yu, Y. Fang, Z. Xia, and R. Welsch, Working Paper. December 2017.
Akkas, A., D. Simchi-Levi, V. Gaur, and Roy Welsch, Working Paper. December 2017.