“Estimates of the genetic parameters, optimum sample size and conversion of quantitative data in multiple categories for soybean genotypes - doi: 10.4025/actasciagron.v34i3.14015” (2011) Acta Scientiarum. Agronomy, 34(3), p. 265–273. doi:10.4025/actasciagron.v34i3.14015.