Petrenko, Y. A., I. V. Gurin, A. Y. Petrenko, and B. P. Sandomirsky. “Culturing of Cryopreserved Stromal Cells on Carbon Microfibers”. Problems of Cryobiology and Cryomedicine, vol. 18, no. 4, Dec. 2008, pp. 493-5, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/360.