%0 Journal Article
%A V. A. Koldorkina
%T The solutions of the equation $\Delta \Delta u=f$ in a piecewise smooth domain
%J Differencialʹnye uravneniâ
%D 1972
%P 374-376
%V 8
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1972_8_2_a18/
%G ru
%F DE_1972_8_2_a18