%0 Journal Article %A V. Yu. Prudnikov %A Yu. A. Chirkunov %T Group properties of equations in classical elasticity theory %J Doklady Akademii Nauk %D 1988 %P 1353-1356 %V 302 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_302_6_a16/ %G ru %F DAN_1988_302_6_a16