Vysekantsev, I.P., Kudokotseva, O.V., Petrenko, T.F., Gurina, T.M., Groshevoy, M.I., Martsenyuk, V.F. and Koshchiy, S.V. 2005. Effect of Storage Temperature Variations on Viability of Cryopreserved Cells of Pro- and Eukaryotes. Problems of Cryobiology and Cryomedicine. 15, 1 (Mar. 2005), 33–41.