Tremarin, Priscila Izabel, Lucielle Merlym Bertolli, Denise Matias de Faria, Júlio César Costin, and Thelma Alvim Veiga Ludwig. 2009. “Gomphonema Ehrenberg E Gomphosphenia Lange-Bertalot (Bacillariophyceae) from Maurício River, Paraná, Brazil”. Biota Neotropica 9 (4). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/573.