%0 Journal Article %A V. A. Kondrat'ev %A O. A. Oleinik %T On~estimates of the second derivatives of the solution of the Dirichlet problem for the biharmonic equation in the neighbourhood of angular points of the boundary %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1987 %P 283-284 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1987_42_2_a12/ %G en %F RM_1987_42_2_a12