Iconography study of Ksitigarba Bodhisattva at Dunhuang after the Mid-Tang Dynasty

http://hk.plm.org.cn/e_book/xz-5455.pdf

Here is an article on the relationship between the belief of Ksitigarba Bodhisattva( who direct the afterlife of human beings)  and the iconography of him, written by Huimin Wang, who is reseacher of the Archeology Institute of  Dunhuang Academy.