TY - SCIENTIA GEOGRAPHICA SINICA A1 - Yuanyuan Guo,Li Li T1 - Change in the Negative Externality of the Shrinking Cities in China Y1 - 2019-01-10 00:00:00.0 JF - SCIENTIA GEOGRAPHICA SINICA JO - SCIENTIA GEOGRAPHICA SINICA SP - 52 EP - 60 VL - 39 IS - 1 UR - {http://geoscien.neigae.ac.cn/EN/10.13249/j.cnki.sgs.2019.01.006} N1 - 10.13249/j.cnki.sgs.2019.01.006 ER -