Vodopianova, L. A., and G. F. Zhegunov. “Cytochemical Detection of Phospholipids in Canine Hematopoietic Bone Marrow Cells After Freezing in Liquid Nitrogen”. Problems of Cryobiology and Cryomedicine, vol. 15, no. 3, Sept. 2005, pp. 581-6, http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1202.