%0 Journal Article %A M. Kh. Ruziev %T A boundary value problem for a mixed type equation with singular coefficients %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2022 %P 18-29 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2022_7_a2/ %G ru %F IVM_2022_7_a2