%0 Journal Article %A K. A. Matveev %T Variational principles in the theory of the stability of elastic plates with ``softened'' preliminary conditions %J Sibirskij žurnal industrialʹnoj matematiki %D 2002 %P 114-119 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SJIM_2002_5_1_a10/ %G ru %F SJIM_2002_5_1_a10