Ledic, Ivan Luz, Evaristo Bianchini Sobrinho, and Oscar Tupy. “Frequency of Recording and Methods of Estimation for Selection on Milk Production”. Pesquisa Agropecuaria Brasileira 26, no. 8 (August 1, 1991): 1227–1236. Accessed November 18, 2025. https://apct.sede.embrapa.br/pab/article/view/3461.