There are 1259 manuscripts of the Dacheng Wuliangshou Jing( Great Vehicle Sutra of Immeasurable Longevity) among Dunhuang documents, including 730 fragments. By comparing the characters, contents, rows and columns, and calligraphy styles of the Great Vehicle Sūtra of Immeasurable Longevity of Dunhuang versions collected in Britain, Russia, and the National Library of China, the authors classify nineteen of these fragments into nine groups.
