Snurnikov, A. S. “Designing the Technique and Equipment for Cattle Embryos Cryopreservation”. Problems of Cryobiology and Cryomedicine, no. 4 (December 25, 2003): 91–94. Accessed May 3, 2024. http://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/1084.