Deus, Fábio Ponciano de, Roberto Testezlaf, and Marcio Mesquita. 2015. “Efficiency of Pressurized Sand Filters in Removing Different Particle Sizes from Irrigation Water”. Pesquisa Agropecuaria Brasileira 50 (10):939-48. https://doi.org/10.1590/S1678-3921.pab2015.v50.20584.