Spatiotemporal variability of actual heating energy efficiency and its influencing factors in areas south and north of Qinling-Huaihe Line
LI Shuangshuang, YAN Junping, WU Yaqun, WANG Chengbo
Acta Geographica Sinica . 2019, (9): 1866 -1877 .  DOI: 10.11821/dlxb201909012