@article{petrere jr._walter_minte-vera_2006,  title={Income evaluation of small - scale fishers in two brazilian urban reservoirs: Represa Billings (SP) and Lago Paranoá (DF)},  volume={66},  ISSN={1519-6984},  url={https://doi.org/10.1590/S1519-69842006000500007},  DOI={10.1590/S1519-69842006000500007},  number={3},  journal={Brazilian Journal of Biology},  publisher={Instituto Internacional de Ecologia},  author={Petrere Jr., M. and Walter, T. and Minte-Vera, C. V.},  year={2006},  month={Aug},  pages={817–828} }