Alvarez, R. H., Martinez, A. C., Carvalho, J. B. P. de, Arcaro, J. R. P., Pires, R. M. L., & Oliveira, C. A. de. (2003). Efficacy of the Ovsynch treatment associated to fixed-time artificial insemination in Bos taurus and Bos indicus herds. Pesquisa Agropecuaria Brasileira, 38(2), 317–323. https://doi.org/10.1590/S1678-3921.pab2003.v38.6576