Problems of Cryobiology and Cryomedicine, E. B. (2019) “In memoriam: Ihor I. Katkov”, Problems of Cryobiology and Cryomedicine, 29(4), p. 370. Available at: http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1565 (Accessed: 26May2020).