%0 Journal Article %A B. A. Kats %T A~boundary value problem with nonmutually single-valued shifts on a~countable set of circles %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1979 %P 66-69 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1979_2_a8/ %G ru %F IVM_1979_2_a8