D. de M. Costa, G. M. Alves, L. F. M. Velho, e F. A. Lansac-Tôha, “<b>Species richness of testate amoebae in different environments from the upper Paraná river floodplain (PR/MS)</b&gt; - doi: 10.4025/actascibiolsci.v33i3.7261”, Acta Sci. Biol. Sci., vol. 33, nº 3, p. 263-270, abr. 2011.