TY - Journal of Geo-information Science A1 - T1 - Y1 - 2020-10-25 00:00:00.0 JF - Journal of Geo-information Science JO - Journal of Geo-information Science SP - 1752 EP - 1752 VL - 22 IS - 8 UR - {https://www.dqxxkx.cn/EN/Y2020/V22/I8/1752} N1 - ER -