%0 Journal Article %A A. O. Vatulyan %A V. O. Yurov %T On the properties of the dispersion set for an inhomogeneous cylindrical waveguide %J Vladikavkazskij matematičeskij žurnal %D 2018 %P 50-60 %V 20 %N 1 %U http://geodesic.mathdoc.fr/item/VMJ_2018_20_1_a5/ %G ru %F VMJ_2018_20_1_a5