%0 Journal Article %A S. I. Repin %T A priori error estimates of variational-difference methods for Hencky plasticity problems %J Zapiski Nauchnykh Seminarov POMI %D 1995 %P 226-234 %V 221 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1995_221_a13/ %G ru %F ZNSL_1995_221_a13