TY  - JOUR 
T1  - Restriction site heteroplasmy in the mitochondrial DNA of Brycon opalinus (Cuvier, 1819) (Characiformes, Characidae, Bryconiae)
JO  - Brazilian Journal of Medical and Biological Research
A1  - Hilsdorf, A.W.S.
A1  - Krieger, J.E.
SN  - 0100-879X
UL  - 10.1590/S0100-879X2004000300003
VL  - 37 
Y1  - 2004
PB  - Brazil 
ER  -