Ostras, D. A., D. G. Lutsenko, V. V. Lomako, I. F. Kovalenko, and O. V. Shylo. “Changes in Erythrocytes Osmotic Fragility and Sphericity Index in Rat’s of Different Ages Under Cold Exposures”. Problems of Cryobiology and Cryomedicine, vol. 29, no. 2, June 2019, p. 172, doi:10.15407/cryo29.02.172.