TY  - BOOK
AU  - Geretschlager Robert Et Al
TI  - Central European Olympiad, a: the Mathematical Duel
SN  - 9789813223912
PB  - World Scientific
KW  - Mathematics
UR  - https://www.worldscientific.com/worldscibooks/10.1142/10544#t=toc
ER  -