Salomoni, E. et al. 2014. Weight and age at puberty of purebred and crossbred heifers grazing on natural pasture. Pesquisa Agropecuaria Brasileira. 23, 10 (Apr. 2014), 1171–1179. DOI:https://doi.org/10.1590/S1678-3921.pab1988.v23.14056.