Oliveira Neto, Antonio Mendes de, et al. “Modalities of Application and Tank-Mix Combinations of Herbicides on Corn under Conventional and Narrowed Spacing”. Semina: Ciências Agrárias, vol. 32, no. 1, Mar. 2011, pp. 81-92, doi:10.5433/1679-0359.2011v32n1p81.