Tavares, L.C.M., Araújo, G.M., dos Santos, F.F.L., Colares, A.P.F., Braga, A.F. and Rosas, J.T.F. 2018. EVALUATION OF NON-PERMANENT AND PERMANENT REGIME MODELS FOR CALCULATION OF DRAIN SPACING. Brazilian Journal of Biosystems Engineering. 12, 3 (Sep. 2018), 248–256. DOI:https://doi.org/10.18011/bioeng2018v12n3p248-256.