I. Dogan, M. Toker, A. Aktar, and M. Yilmaz, “Effect of GnRH and hCG Treatment Following a Short-Term Estrus Synchronization Protocol on Ovulation and the Fertility in Merino Ewes, During the Breeding Season”, J Hellenic Vet Med Soc, vol. 74, no. 4, pp. 6517–6524, Jan. 2024.