E. B. de Oliveira, Y. M. M. de Oliveira, and W. L. Hafley, “Software to predict growth and yield for P. elliottii and P. taeda in Souther Brazil”, PAB, vol. 26, no. 1, pp. 149–151, Jan. 1991, doi: 10.1590/S1678-3921.pab1991.v26.3173.