%0 Journal Article %A A. V. Chernyshov %T Model for planning the number of optical disks needed to create and maintain a long-term electronic archive %J Vestnik Sankt-Peterburgskogo universiteta. Prikladnaâ matematika, informatika, processy upravleniâ %D 2019 %P 578-591 %V 15 %N 4 %U http://geodesic.mathdoc.fr/item/VSPUI_2019_15_4_a12/ %G ru %F VSPUI_2019_15_4_a12