@article{RM_1987_42_2_a12,
     author = {V. A. Kondrat'ev and O. A. Oleinik},
     title = {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},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {283--284},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1987_42_2_a12/}
}