%0 Journal Article %A B. A. Plamenevskii %A A. S. Poretskii %T Radiation and scattering in electromagnetic waveguides near thresholds %J Algebra i analiz %D 2020 %P 234-270 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2020_32_4_a6/ %G ru %F AA_2020_32_4_a6