TY - Acta Geographica Sinica A1 - LI Guoping, SUN Tieshan, LU Minghua T1 - A Study on the Process, Characteristics and Influencing Factors of Beijing's Hi-Tech Industrial Agglomeration Y1 - 2003-11-25 00:00:00.0 JF - Acta Geographica Sinica JO - Acta Geographica Sinica SP - 927 EP - 936 VL - 58 IS - 6 UR - {https://www.geog.com.cn/EN/10.11821/xb200306016} N1 - 10.11821/xb200306016 ER -