Pupo, D. V. and Disaró, S. T. (2006) “Characterization of Guaraguaçú River (Paraná, Brazil) based on the distribution of foraminiferal and thecamoebian assemblages and sedimentological analysis”, Anuário do Instituto de Geociências. Rio de Janeiro, BR, 29(1), pp. 434–435. doi: 10.11137/2006_1_434-435.