@article{santana_pereira_roberto_gomes_pagioro_mormul_2017,  title={Longitudinal gradient in limnological variables in the Upper Paraná River: a brief description and the importance of undammed tributaries},  volume={29},  ISSN={2179-975X},  url={https://doi.org/10.1590/S2179-975X0217},  DOI={10.1590/S2179-975X0217},  journal={Acta Limnologica Brasiliensia},  publisher={Associação Brasileira de Limnologia},  author={Santana, Natália Fernanda and Pereira, Larissa Strictar and Roberto, Maria do Carmo and Gomes, Sue Ellen do Amaral and Pagioro, Thomaz Aurélio and Mormul, Roger Paulo},  year={2017},  pages={e116} }