T. KCHALIFA, M. M. WAHEED, and LYMBEROPOULOS (Α.Γ. ΛΥΜΠΕΡΟΠΟΥΛΟΣ) A. G., “An endeavor to improve longevity of cryopreserved equine sperm”, J Hellenic Vet Med Soc, vol. 57, no. 3, pp. 195–204, Nov. 2017.