TY  - BOOK
AU  - Gronau, Hans-Dietrich O. F.
TI  - 50th IMO : 50 years of International Mathematical Olympiads
SN  - 9783642145643
U1  - 510 
PY  - 2010///
CY  - London
PB  - Springer
KW  - Mathematics--Competitions
ER  -