Gorbunov, L. V., and E. A. Gordienko. “Providing the Comparability Conditions of Results on Cryopreservation of Mammalian Embryos”. Problems of Cryobiology and Cryomedicine 21, no. 2 (July 11, 2011): 162–172. Accessed June 30, 2022. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/141.