TY - JOUR SN - 1561-0594 T1 - Using Satellite Images to Observe the Garrison Sites along the Northern Line of the Han “Outer Great Wall”, Inner Mongolia AU - HSING I-tien Y1 - 2020/06/30 PY - 2020 DA - 2020/06/30 T2 - Disquisitions on the Past & Present JF - Disquisitions on the Past & Present JO - Disquisitions on the Past & Present JA - Disquisitions on the Past & Present VL - 34 SP - 53 EP - 75 Y2 - 2020/06/30 ER -