@article{silva_calasans_ovalle_rezende_2001,  title={Dissolved Nitrogen and Phosphorus Dynamics in the Lower Portion of the Paraiba do Sul River, Campos dos Goytacazes, RJ, Brazil},  volume={44},  ISSN={1516-8913},  url={https://doi.org/10.1590/S1516-89132001000400006},  DOI={10.1590/S1516-89132001000400006},  number={4},  journal={Brazilian Archives of Biology and Technology},  publisher={Instituto de Tecnologia do Paraná - Tecpar},  author={Silva, Mônica Aparecida Leite and Calasans, Claudia Ferreira and Ovalle, Alvaro Ramon Coelho and Rezende, Carlos Eduardo},  year={2001},  month={Dec},  pages={365–371} }