Title:Estudio del comportamiento de resaltos hidráulicos en tuberías parcialmente llenas de sección circular, con Números de Froude supercríticos menores a 4
Title:[Phylogeography and genetic structure of the species complex of the freshwater stingray, Potamotrygon orbignyi (Castelnau, 1855), among Amazonas and Orinoco rivers] / Uncovering evolutionarily significant units inside the species complex of the freshwater stingray, Potamotrygon orbignyi (Castelnau, 1855), among Amazonas and Orinoco rivers