TY  - JOUR 
T1  - The two most important lateritization cycles in the Amazon region and their paleoecological importance
JO  - Anais da Academia Brasileira de Ciências
A1  - COSTA, MARCONDES L. DA
SN  - 0001-3765
UL  - 10.1590/S0001-37652001000300014
VL  - 73 
Y1  - 2001
PB  - Brazil 
ER  -