It was written in 1951. Note: This is Altanbagana's workplan for 1951, his report of work conducted from 1945-1951, certification and manuscripts. Extent and format of original material: Typewritten. Owner(s) of original material: Mongolian Academy of Sciences, Institute of History and Ethnography. Author(s) of original material: Altanbagana. Original institution reference: F-4, D-1, HN-98.