TY - Acta Geographica Sinica A1 - HUANG Chunlin, LI Xin T1 - Comparison of Three Different Methods to Distribute Spatial Data on the Internet Y1 - 2002-12-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 44 EP - 51 VL - 57 IS - 7s UR - {https://www.geog.com.cn/EN/10.11821/xb20027s007} N1 - 10.11821/xb20027s007 ER -