Mógor, Átila Francisco, et al. “Chlorophyll Contents in Tomato Cultivars under Magnesium Foliar Applications”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 43, no. 4, Nov. 2013, pp. 363-9, https://doi.org/10.5216/pat.v43i4.20592.