Lyubych, L. D., and M. I. Lisyany. “Expression of Marker Proteins During in Vitro Culture of Neural Progenitor Cells”. Problems of Cryobiology and Cryomedicine, vol. 15, no. 3, Sept. 2005, pp. 335-6, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1125.