TY - JOUR AU - E. V. Radkevich TI - An operator pencil for the Verigin contact problem JO - Doklady Akademii Nauk PY - 1990 SP - 1303 EP - 1307 VL - 310 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1990_310_6_a4/ LA - ru ID - DAN_1990_310_6_a4 ER -