Carvajal-SernaM., CardozoJ. A., Grajales-LombanaH., Cebrián-PérezJ. A. and Muiño-BlancoT. (2018) “Sperm quality and seminal plasma proteins in three sheep breeds under high altitude and tropical conditions”, Spanish Journal of Agricultural Research, 16(2), p. e0403. doi: 10.5424/sjar/2018162-12882.