TY  - BOOK
AU  - Andreescu, Titu
AU  - Gelca, Razvan
TI  - Mathematical olympiad challenges
SN  - 0-8176-4155-6
U1  - 510/AND 
PY  - 2000///
CY  - Boston
PB  - Birkhauser
KW  - Mathematics-Problems, exercises, etc
KW  - Mathematics
ER  -