TY  - JOUR 
T1  - From production to consumption: tracing C, N, and S dynamics in Brazilian agroecosystems using stable isotopes
JO  - Pesquisa Agropecuária Brasileira
A1  - Chalk, Phillip Michael
SN  - 0100-204X
UL  - 10.1590/S0100-204X2016000900003
VL  - 51 
Y1  - 2016
PB  - Brasil 
ER  -