Panasenko, Yu. V., I. P. Vysekantsev, and S. V. Biryukova. 2005. “Study of Survival of Escherichia Coli Plasmid Strains After Incubation With Cryoprotectants and Cooling down to -196°C”. Problems of Cryobiology and Cryomedicine 15 (3):267. https://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/1099.