TY  - JOUR 
T1  - Inter-annual variations in the floristic and population structure of an herbaceous community of "caatinga" vegetation in Pernambuco, Brazil
JO  - Brazilian Journal of Botany
A1  - Reis, Ana Maria S.
A1  - Araújo, Elcida L.
A1  - Ferraz, Elba Maria N.
A1  - Moura, Ariadne N.
SN  - 0100-8404
UL  - 10.1590/S0100-84042006000300017
VL  - 29 
Y1  - 2006
PB  - Brasil 
ER  -