%0 Journal Article %A D. A. Tursunov %A M. O. Orozov %T Asymptotic solution of the perturbed first boundary value problem with a non-smooth coefficient %J Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika %D 2020 %P 41-47 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VYURM_2020_12_3_a5/ %G en %F VYURM_2020_12_3_a5