TY  - JOUR 
T1  - Bryophytes on rocky outcrops in the caatinga biome: a conservationist perspective
JO  - Acta Botanica Brasilica
A1  - Silva, Joan Bruno
A1  - Germano, Shirley Rangel
SN  - 0102-3306
UL  - 10.1590/S0102-33062013000400023
VL  - 27 
Y1  - 2013
PB  - Brasil 
ER  -