TY  - JOUR
TI  - 
T2  - HSE Economic Journal 
IS  - HSE Economic Journal 
AB  - 
AU  - Leonid Grigoryev
UR  - https://ej.hse.ru/en/2013-17-3/106320840.html
PY  - 2013
SP  - 391-393
VL  - 17