%0 Journal Article %A V. I. Dymchenko %T Asymptotic expansions of solutions of the Helmholtz equation in the neighbourhood of boundary corner points %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1979 %P 1205-1216 %V 19 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1979_19_5_a11/ %G ru %F ZVMMF_1979_19_5_a11