[1]
Araújo, P.G. et al. 2014. Influence of estrogen in fertility of “problem" cows (repeat-breeding). Pesquisa Agropecuaria Brasileira. 6, 1 (Apr. 2014), 131–135. DOI:https://doi.org/10.1590/S1678-3921.pab1971.v6.17746.