%0 Journal Article
%A N. A. Lyul'ko
%T Increasing of smoothness of the solutions to a boundary value problem for the wave equation on the plane
%J Žurnal matematičeskoj fiziki, analiza, geometrii
%D 2004
%P 169-176
%V 11
%N 2
%U http://geodesic.mathdoc.fr/item/JMAG_2004_11_2_a3/
%G ru
%F JMAG_2004_11_2_a3