%0 Journal Article %A I. I. Vorovich %T Error of direct methods in the non-linear theory of shells %J Doklady Akademii Nauk %D 1958 %P 196-199 %V 122 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_122_2_a8/ %G ru %F DAN_1958_122_2_a8