%0 Journal Article %A R. Z. Dautov %A A. V. Lapin %T Investigation of convergence in difference norms of schemes of the finite element method with numerical integration for fourth-order elliptic equations %J Differencialʹnye uravneniâ %D 1981 %P 1256-1269 %V 17 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_7_a10/ %G ru %F DE_1981_17_7_a10