P. Kumar and C. R. Balakrishnan, “Effect of calcium ions on in vitro capacitation and acrosome reaction in cattle spermatozoa”, Indian J of Anim Sci, vol. 68, no. 1, Jun. 2012, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/19273