Myrrha, M.A.L. and Reifschneider, F.J.B. 2014. Sieving machine. Pesquisa Agropecuaria Brasileira. 21, 12 (Apr. 2014), 1347–1351. DOI:https://doi.org/10.1590/S1678-3921.pab1986.v21.15123.