1 Subjects: “...Yangtze River Delta Urban Agglomeration...”

2 Subjects: “...urban agglomeration...”

3 Subjects: “...Beijing-Tianjin-Hebei urban agglomeration...”

4 Subjects: “...urban agglomeration...”

5 Subjects: “...Guangxi Beibu Gulf urban agglomeration (GBG_UA)...”

6 Subjects: “...aluminum agglomeration...”

7 Subjects: “...urban agglomeration (UA)...”

8 Subjects: “...Lanzhou-Xining urban agglomeration...”

9 Subjects: “...urban population agglomeration...”

10 Subjects: “...spatial agglomeration...”

11 Subjects: “...urban agglomerations...”

12 Subjects: “...urban agglomeration...”

13 Subjects: “...Chengdu-Chongqing urban agglomeration...”

14 Subjects: “...urban agglomeration...”