TY  - DATA
AU  - Razvan Gelca, Titu Andreescu
TI  - Putnam and Beyond
SN  - 9780387684451
PY  - 2007///
PB  - Springer New York
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/978-0-387-68445-1
ER  -