Vélez, A.M.L. de and Cunha, G.A.P. da (2014) “Influence of pH and urea on the efficacy of the 2-chloroethylphosphonic acid as floral inductant of pineapple”, Pesquisa Agropecuaria Brasileira, 18(11), pp. 1199–1205. doi:10.1590/S1678-3921.pab1983.v18.15462.