%0 Journal Article %A N. I. Zhirnov %T On the investigation of the asymptotic properties of solutions of the wave equation at singular points of the potential %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1968 %P 443-447 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1968_8_2_a17/ %G ru %F ZVMMF_1968_8_2_a17