%0 Journal Article %A S. A. Nazarov %T Elliptic boundary value problems with periodic coefficients in a~cylinder %J Izvestiya. Mathematics %D 1982 %P 89-98 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1982_18_1_a4/ %G en %F IM2_1982_18_1_a4