TY  - GEN
AU  - Andreescu, Titu
AU  - Feng, Zuming
TI  - A path to combinatories for undergraduates: counting strategies
SN  - 81-8128-336-8
U1  - 511.6 
PY  - 2004///, r2005
CY  - Boston
PB  - Birkhauser
KW  - COMBINATORIAL ANALYSIS
ER  -