P. D. Fernandes, S. Watanabe, G. D. de Oliveira, and H. P. Haag, “ Mineral nutrition of ornamental plants: II - absorption of nutrients by carnation plants ”, An. Esc. Super. Agr. Luiz de Queiroz, vol. 28, pp. 135–143, Jan. 1971, doi: 10.1590/S0071-12761971000100007.