Chadaev, V. Ye., I. N. Kuchkov, I. V. Cherkashina, K. A. Goltsev, and I. V. Dobrunova. “Morphological and Functional Characteristics of Human Spermatozoa After Cryopreservation under Ultrarapid Cooling”. Problems of Cryobiology and Cryomedicine 15, no. 4 (December 25, 2005): 665–670. Accessed November 24, 2024. https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1216.