Panasenko, Y. V., I. P. Vysekantsev, and S. V. Biryukova. “Study of Survival of Escherichia Coli Plasmid Strains After Incubation With Cryoprotectants and Cooling down to -196°C”. Problems of Cryobiology and Cryomedicine, vol. 15, no. 3, Sept. 2005, p. 267, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1099.