%0 Journal Article %A I. A. Molotkov %T The Behaviour of the Guided Waves in the Neughbourhood of the Cut-Off Section %J Zapiski Nauchnykh Seminarov POMI %D 1974 %P 181-188 %V 42 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1974_42_a9/ %G ru %F ZNSL_1974_42_a9