%0 Journal Article %A A. V. Lapin %T Investigation of two-layer difference schemes for parabolic variational inequalities %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1983 %P 37-45 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1983_10_a6/ %G ru %F IVM_1983_10_a6