Panasenko, Yu. V., I. P. Vysekantsev, and S. V. Biryukova. 2008. “Cryopreservation of Enterobacteriaceae Bacteria Plasmid Strains”. Problems of Cryobiology and Cryomedicine 18 (1):95-97. https://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/460.