Zhegunov, G. F., O. N. Denisova, and N. G. Zemlyanskikh. 2005. “Cryopreservation and Survival of Animal Erythrocytes”. Problems of Cryobiology and Cryomedicine 15 (3):566-69. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1196.