Canel, N. G.; Bevacqua, R. J.; Hiriart, M. I.; Chaves Rabelo, N.; Almeida Camargo, L. S. de; Romanato, M.; Piñeiro de Calvo, L.; & Salamone, D. F. (2017). "Sperm pretreatment with heparin and L - glutathione, sex - sorting, and double cryopreservation to improve intracytoplasmic sperm injection in bovine". Theriogenology‚ 93.‚  p.62-70.