TY - JOUR AU - A. A. Spektor TI - Variational methods of solution of three-dimensional contact JO - Doklady Akademii Nauk PY - 1985 SP - 865 EP - 870 VL - 285 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1985_285_4_a21/ LA - ru ID - DAN_1985_285_4_a21 ER -