"Akademii︠a︡ Nauk SSSR Sovmestnai︠a︡ Sovetsko - Mongolʹskai︠a︡ Nauchno-Issledovatelʹskai︠a︡ Geologicheskai︠a︡ Ėkspedit︠s︡ii︠a︡ AN SSSR i AN MNR" = USSR Academy of Sciences Joint Soviet - Mongolian Research Geological Expedition of the USSR Academy of Sciences and the Mongolian Academy of Sciences.