Faina Z. Gumarova, Andrey E. Mackushev, Oleg V. Evgrafov, Natalia V. Nesterova, Stanislav O. Evgrafov, Elena A. Malova, Ekaterina A. Micheeva, Alexej A. Emekin and Evgeny I. Tsaregorodtsev
The Social Sciences 11 ( 8 ): 1692 - 1698 , 2016