«Istoriya Buryat-Mongolskoy ASSR» [History of the Buryat-Mongolian ASSR] (Burmongiz, vol. 1 1951/1954, vol. 2 until 1959)

The canonical Soviet compendium of the history of the Buryat-Mongolian ASSR edited by A.P. Okladnikov — a fundamental historical source of the era; actual access is via the reading rooms of the NEB [National Electronic Library].