TY  - JOUR 
T1  - Evaluation of trace metals (cadmium, chromium, copper and zinc) in tissues of a commercially important fish (Leporinus obtusidens) from Guaíba Lake, Southern Brazil
JO  - Brazilian Archives of Biology and Technology
A1  - Costa, Silene de Carvalho
A1  - Hartz, Sandra Maria
SN  - 1516-8913
UL  - 10.1590/S1516-89132009000100029
VL  - 52 
Y1  - 2009
PB  - Brasil 
ER  -