TY  - DATA
AU  - Brenti, Francesco
TI  - Unimodal, log-concave and Polya frequency sequences in combinatorics 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470408367 (online)
PY  - 1989///
CY  - Providence, R.I., USA
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0413
ER  -