TY  - JOUR 
T1  - A contribution to the chemical characterization of rivers in the Rio Negro Basin, Brazil
JO  - Journal of the Brazilian Chemical Society
A1  - Küchler, Ivo L.
A1  - Miekeley, Norbert
A1  - Forsberg, Bruce R.
SN  - 0103-5053
UL  - 10.1590/S0103-50532000000300015
VL  - 11 
Y1  - 2000
PB  - Brazil 
ER  -