RIEGER, F. Pumping Efficiency of Screw Agitators in a Tube. Acta Polytechnica, Prague, Czech Republic, v. 42, n. 1, 2002. DOI: 10.14311/310. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/310. Acesso em: 22 jan. 2025.