TY  - JOUR 
T1  - Contribution of humic substances from different composts to the synthesis of humin in a tropical soil
JO  - Revista Brasileira de Ciência do Solo
A1  - Lima, Claudivan Costa
A1  - Mendonça, Eduardo de Sá
A1  - Roig, Asunción
SN  - 0100-0683
UL  - 10.1590/S0100-06832010000400004
VL  - 34 
Y1  - 2010
PB  - Brasil 
ER  -