%0 Journal Article %A A. K. Urinov %A K. T. Karimov %T On unique solvability of boundary-value problems for three-dimentional elliptic equation with three singular coefficients %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2019 %P 69-81 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2019_2_a7/ %G ru %F IVM_2019_2_a7