%0 Journal Article %A Le Din' Thin' %T An investigation by spectral criteria of the power stability of difference approximations of problems with time %J Doklady Akademii Nauk %D 1969 %P 703-706 %V 189 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_189_4_a2/ %G ru %F DAN_1969_189_4_a2