Cunha, J.P.A.R. da et al. 2004. Droplet spectrum of standard flat fan and hollow cone spray nozzles. Pesquisa Agropecuaria Brasileira. 39, 10 (Oct. 2004), 977–985. DOI:https://doi.org/10.1590/S1678-3921.pab2004.v39.6865.