%0 Journal Article %T ХI International School on <>, 3--8.10.2016, Saratov, Russia %J Izvestiya VUZ. Applied Nonlinear Dynamics %D 2016 %P 104-111 %V 24 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVP_2016_24_6_a6/ %G ru %F IVP_2016_24_6_a6