Parés-Casanova, Pere Miquel, et al. “Comparison of Non-Linear Models for Describing Growth Curves According to Sex in Ovine Chiapas Breed”. Revista De Investigaciones Veterinarias Del Perú, vol. 26, no. 3, Sept. 2015, pp. 389-94, https://doi.org/10.15381/rivep.v26i3.11170.