%0 Journal Article %A A. A. Abashkin %A I. P. Egorova %T Dirichlet problem in parallelepiped for elliptic equation with three singular coefficients %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2019 %P 3-14 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2019_10_a0/ %G ru %F IVM_2019_10_a0