Melo Júnior, Mauro de, Viviane Lúcia dos Santos Almeida, Sigrid Neumann-Leitão, Maryse Nogueira Paranaguá, and Ariadne do Nascimento Moura. 2007. “State of the Art in Planktonic Rotifers Biodiversity from Freshwater Environments in the State of Pernambuco (Brazil)”. Biota Neotropica 7 (3). Sao Paulo, Brazil. //www.biotaneotropica.org.br/BN/article/view/324.