Paiva, S. de, C. H. Zawadzki, M. C. C. Ruvulo-Takasusuki, A. S. Lapenta, e E. Renesto. “<b>Allozyme Analysis of the Four Species of <i>Hypostomus</i> (Teleostei: Loricariidae) from the Ivaí River, Upper Paraná River Basin, Brazil</b&gt; - Doi: 10.4025/actascibiolsci.V35i4.16355”. Acta Scientiarum. Biological Sciences, Vol. 35, nº 4, julho de 2013, p. 571-8, doi:10.4025/actascibiolsci.v35i4.16355.