%0 Journal Article %A S. V. Gonchenko %A M. S. Gonchenko %A I. O. Sinitsky %T On mixed dynamics of~two-dimensional reversible diffeomorphisms with symmetric non-transversal heteroclinic cycles %J Izvestiya. Mathematics %D 2020 %P 23-51 %V 84 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2020_84_1_a2/ %G en %F IM2_2020_84_1_a2