TY  - JOUR 
T1  - Ecology and the challenge of a multifunctional use of soil
JO  - Pesquisa Agropecuária Brasileira
A1  - Lavelle, Patrick
SN  - 0100-204X
UL  - 10.1590/S0100-204X2009000800003
VL  - 44 
Y1  - 2009
PB  - Brasil 
ER  -