Sandomirsky, B. P. “Use of Frozen-Dried Bovine Colostrum As a Food Supplement”. Problems of Cryobiology and Cryomedicine, vol. 15, no. 3, Sept. 2005, p. 285, http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1106.