Gorbunov, L. V. 2009. “Reproducibility of Results for Cryopreservation of Different Variety Cuttings of Pomefruit Trees”. Problems of Cryobiology and Cryomedicine 19 (4):473-80. http://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/236.