&lt;b&gt;Allozyme analysis of the four species of &lt;i&gt;Hypostomus&lt;/i&gt; (Teleostei: Loricariidae) from the Ivaí river, upper Paraná river basin, Brazil&lt;/b&gt; - doi: 10.4025/actascibiolsci.v35i4.16355
Acta Scientiarum. Biological Sciences