蒙古科学院
In January 1913, Agvan Dorzhiev and three other Tibetan representatives signed a treaty between Tibet and Mongolia in Urga, proclaiming mutual recognition and their independence from China. The British diplomat Charles Bell wrote that the 13th Dalai Lama told him that he had not authorized Agvan Dorzhiev to conclude any treaties on behalf of Tibet. Because the text was not published, some initially doubted the existence of the treaty, but the Mongolian text was published by the Mongolian Academy of Sciences in 1982.