P. V. D. de Souza, O. C. Koller, S. F. Schwarz, and C. I. N. Barradas, “Influency of etephon concentration and spraying pressure on the amount of reserve substances in tangerines ’Montenegrina’”, PAB, vol. 28, no. 5, pp. 613–619, May 1993, doi: 10.1590/S1678-3921.pab1993.v28.3917.