N. A. Volkova, S. P. Mazur, V. S. Kholodnyy, and A. Y. Petrenko, “Skin Stem Cells as an Object for Cryopreservation. 1. Skin Stem Reserve”, Probl Cryobiol Cryomed, vol. 24, no. 1, pp. 3–15, Mar. 2014.