S. I. Ribeiro, N. Ventorim, P. Pereira, and L. C. de S. Bueno, “Correlations among nine characters of rubber tree clones at Porto Velho conditions, Rondônia state”, PAB, vol. 19, no. 10, pp. 1235–1245, Apr. 2014, doi: 10.1590/S1678-3921.pab1984.v19.16125.