Enhancing zona penetration by spermatozoa from a teratospermic species, the cheetah (Acinonyx jubatus)v. 271323–330
Roth, Terri L., Swanson, William F., Blumer, E., and Wildt, David E. 1995. "Enhancing zona penetration by spermatozoa from a teratospermic species, the cheetah (Acinonyx jubatus)." The Journal of experimental zoology, 271 323–330.