TY - Journal of Guizhou University of Finance and Economics A1 - RAN Qi-ying, ZHANG Jin-ning, YANG Xiao-dong T1 - Does High-Speed Railway Improve the Efficiency of Urban Green Development-An Empirical Test Based on Difference in Difference Model Y1 - 2020-09-15 JF - Journal of Guizhou University of Finance and Economics JO - Journal of Guizhou University of Finance and Economics SP - 100 EP - 110 VL - 38 IS - 05 UR - https://gcxb.gufe.edu.cn N1 - ER -