%0 Journal Article %A N. S. Smirnova %T Following screened perturbations in an elastic medium with a thin layer %J Zapiski Nauchnykh Seminarov POMI %D 1987 %P 159-165 %V 165 %U http://geodesic.mathdoc.fr/item/ZNSL_1987_165_a14/ %G ru %F ZNSL_1987_165_a14