%0 Journal Article %A A. I. Morozov %A O. V. Pochinka %T Combinatorial invariant of Morse-Smale diffeomorphisms on surfaces with orientable heteroclinic %J Žurnal Srednevolžskogo matematičeskogo obŝestva %D 2020 %P 71-80 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SVMO_2020_22_1_a4/ %G ru %F SVMO_2020_22_1_a4