1. Alimov N.I., Pavlov A.Yu., Popovich V.I. et al. Kletki krovi kak indikator toksicheskogo deistviya otravlyayushchikh veshchestv [Blood cells as an indicator of the toxic effect of toxic substances]. Moscow, 2003, 205 p. (In Russian)
2. Barnash E.N. Hematological profile of Karachay sheep in ontogenesis in the conditions of the highlands. In: Sbornik nauchnykh trudov Stavropol'skogo nauchno‐issledovatel'skogo instituta zhivotnovodstva i kormoproizvodstva [Collection of scientific papers of the Stavropol Scientific Research Institute of Animal Husbandry and feed production]. 2010, vol. 3, no. 1, pp. 1‐2. (In Russian)
3. Silkina S.F., Barnash E.N. Morphobiochemical blood parameters of sheep of Karachay breed in different conditions of keeping. Ovtsy, kozy, sherstyanoe delo [Sheep, goats, wool business]. 2012, no. 2, 83 p. (In Russian)
4. Jensen F.B. The dual roles of red blood cells in tissue oxygen delivery: Oxygen carriers and regulators of local blood flow. The Journal of experimental biology, 2009, iss. 212, no. 21, pp. 3387‐3393. DOI: 10.1242/jeb.023697
5. Kozinets G.I., Vysotsky V.V., Zakharov V.V., et al. Krov' i ekologiya [Blood and ecology]. Moscow, 2007, 430 p. (In Russian)