Tsutsayeva, A. A., A. E. Ananyiina, and N. V. Pavlenko. “Viability of Streptomyces Fradiae VNIIG-25’ Spore Culture After Some Factor Effect of Freeze-Drying Process”. Problems of Cryobiology and Cryomedicine, no. 1, Mar. 2004, pp. 26-30, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/700.