TY - Acta Geographica Sinica A1 - She Zhixiang T1 - ON THE EXPLOITATION, OPENING TO THE OUTSIDE WORLD AND STUDIES ON GEOGRAPHY OF THE CHANGJIAMG RIVER BASIN Y1 - 1994-12-15 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 729 EP - 736 VL - 49 IS - s1 UR - {https://www.geog.com.cn/EN/10.11821/xb1994S1019} N1 - 10.11821/xb1994S1019 ER -