Petrenko, Yu. A., I. V. Gurin, A. Yu. Petrenko, and B. P. Sandomirsky. 2008. “Culturing of Cryopreserved Stromal Cells on Carbon Microfibers”. Problems of Cryobiology and Cryomedicine 18 (4):493-95. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/360.