Stegniy, M. Y., A. N. Goltsev, and B. T. Stegniy. “Influence of Duration of a Moderate Low Temperature Storage on RNA of Cattle Diarrhea Virus Strains”. Problems of Cryobiology and Cryomedicine, vol. 16, no. 1, Mar. 2006, pp. 76-81, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/619.