Silva-Lehmkuhl, A. M. da, P. I. Tremarin, I. S. Vercellino, and T. A. V. Ludwig. “Periphytic Diatoms from an Oligotrophic Lentic System, Piraquara I Reservoir, Paraná State, Brazil”. Biota Neotropica, vol. 19, no. 2, Jan. 2019, //www.biotaneotropica.org.br/BN/article/view/1634.