TY  - BOOK
AU  - Gelca, Razvan
AU  - Andreescu, Titu
TI  - Putnam and beyond
SN  - 9780387684451
AV  - QA 43 Gel 
PY  - 2007///
CY  - New York
PB  - Springer
KW  - MATHEMATICS--PROBLEMS, EXERCISES, ETC
KW  - MATHEMATICS--COMPETITIONS
KW  - MATHEMATICS--HANDBOOKS, MANUALS, ETC
ER  -