Peixoto, Maria Gabriela Campolina Diniz, et al. “Random Regression Models to Estimate Genetic Parameters for Milk Production of Guzerat Cows Using Orthogonal Legendre Polynomials”. Pesquisa Agropecuaria Brasileira, vol. 49, no. 5, June 2014, pp. 372-83, doi:10.1590/S1678-3921.pab2014.v49.18731.