%0 Journal Article %A M. B. Tabanov %T Concentrated eigenoscillations in a periodic waveguide with weakly %J Doklady Akademii Nauk %D 1987 %P 71-75 %V 297 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_297_1_a16/ %G ru %F DAN_1987_297_1_a16