TY - JOUR AU - V. Yu. Prudnikov AU - Yu. A. Chirkunov TI - Group properties of equations in classical elasticity theory JO - Doklady Akademii Nauk PY - 1988 SP - 1353 EP - 1356 VL - 302 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1988_302_6_a16/ LA - ru ID - DAN_1988_302_6_a16 ER -