RIEGER, F. Pumping Efficiency of Screw Agitators in a Tube. Acta Polytechnica, [S. l.], v. 42, n. 1, 2002. DOI: 10.14311/310. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/310.. Acesso em: 12 may. 2025.