TY - JOUR AU - N. S. Smirnova TI - Following screened perturbations in an elastic medium with a thin layer JO - Zapiski Nauchnykh Seminarov POMI PY - 1987 SP - 159 EP - 165 VL - 165 UR - http://geodesic.mathdoc.fr/item/ZNSL_1987_165_a14/ LA - ru ID - ZNSL_1987_165_a14 ER -