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https://dsr.nii.ac.jp/toyobunko/V-B-1-67/V-1/graphic/0690.html.en Mongoliya i Amdo i mertby gorod Khara-Khoto : vol.1 / Page 690 (Graphic) amdo gorod khara vol graphic https://hasp.ub.uni-heidelberg.de/journals/asien/article/view/14540 Andreas Gruschke: The Cultural Monuments of Tibet's Outer Provinces: Amdo, Vol. 2. The Gansu and... cultural monuments andreas tibet outer provinces