Gadêlha, Ricardo Sérgio Sarmento, and Hélio de Oliveira Vasconcellos. “Effects of the Time of the Calcium Carbide Treatment on Pineapple Plants (<i> Ananas comosus< i> Cv. Pérola ), With Several Ages”. Pesquisa Agropecuaria Brasileira, vol. 12, no. 1, Apr. 2014, pp. 161-4, doi:10.1590/S1678-3921.pab1977.v12.16820.