Osório, N. C.; Tremarin, P. I.; Ludwig, T. V.; Rodrigues, L. <b><i>Gomphonema</I&gt; Ehrenberg (Bacillariophyceae) in a Lotic Environment of the Upper Paraná River Floodplain, Brazil. Acta Sci. Biol. Sci. 2017, 39, 135-159.