TY  - BOOK
AU  - Dorichenko,Sergey
AU  - Shubin, Tatina 
TI  - A Moscow math circle: week by week problem sets 
T2  - Mathematical circles Library
SN  - 9788173719936
U1  - 510 
PY  - 2016///
CY  - Hyderabad
PB  - Universities Press
ER  -