%0 Journal Article %A K. E. Plokhotnikov %T The possibility of a finite crystal at zero temperature (the %J Doklady Akademii Nauk %D 1991 %P 877-881 %V 320 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1991_320_4_a21/ %G ru %F DAN_1991_320_4_a21